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, APRIL 2015, 66, 2, 139—156 doi: 10.1515/geoca-2015-0016
Introduction and taxonomic history
The Turiec Basin, located in the Western Carpathians in
northern Slovakia (Fig. 1), harboured a closed, long-lived
freshwater lake during the Late Miocene (Pipík et al. 2012).
Data quality about its fauna and flora is, however, quite var-
ied. The best known fossil group is the ostracods, documented
in several successive papers by Pipík (2002, 2004, 2005),
Pipík & Bodergat (2003a,b, 2004a,b, 2006, 2007, 2008), and
Pipík et al. (2012). The fauna revealed a high degree of ende-
micity, which makes the Lake Turiec a particularly interest-
ing research field and a potential equivalent to comparable
extant and fossil long-lived systems.
In contrast, the published data on the mollusc fauna of
Lake Turiec is mostly imprecise and contains many misiden-
tifications. The first work dates back to the 19
th
century and
only mentions the bivalve Congeria triangularis (Andrian
1865). Based on determinations by Štúr (1860) – Andrian
(1866) gave more detailed information and additionally re-
corded Planorbis pseudoammonius, Paludina sadleri, and
unidentifiable remains of the genera Paludina, Planorbis,
Melanopsis, and Valvata from the Bystrička locality (see also
Vetters 1910). Half a century later, Vigh (1915) mentioned
viviparids, melanopsids, neritids, hydrobiids, planorbids, and
dreissenids from Martin brickyard. After determinations by
Wenz, who compared the fauna with the much older Moravian
Upper Miocene endemic lacustrine gastropod fauna of the
Turiec Basin: addressing taxonomic, paleobiogeographic
and stratigraphic issues
THOMAS A. NEUBAUER
1
, MATHIAS HARZHAUSER
1
and RADOVAN PIPÍK
2
1
Geological-Paleontological Department, Natural History Museum Vienna, Burgring 7, 1010 Vienna, Austria;
thomas.neubauer@nhm-wien.ac.at; mathias.harzhauser@nhm-wien.ac.at
2
Geological Institute, Slovak Academy of Sciences, Branch: Ďumbierska 1, 974 01 Banská Bystrica, Slovak Republic; pipik@savbb.sk
(Manuscript received September 11, 2014; accepted in revised form March 12, 2015)
Abstract: The present work displays the first detailed taxonomic study on the freshwater gastropod fauna of the Upper
Miocene Lake Turiec. Apart from several mentions of species and genus names in the literature, the mollusc fauna has
been poorly studied up to now. Some of the cited genera implied peculiar paleobiogeographic relationships, urging a
taxonomic investigation to either prove or revise such arising claims. Variable degrees of preservation, however, lim-
ited the possibility to identify all the fossils at species level. The fauna includes at least ten species, of which five turned
out to be new to science. Four of those were sufficiently well preserved to be described as new species, namely Viviparus
pipiki Neubauer & Harzhauser nov. sp., Melanopsis glaubrechti Neubauer & Harzhauser nov. sp., Tournouerina
turiecensis Neubauer & Harzhauser nov. sp., and Radix kovaci Neubauer & Harzhauser nov. sp. Additionally, the new
genus Popovicia Neubauer & Harzhauser nov. gen. is introduced for the primary homonym Metohia Popović, 1964 non
Absolon, 1927. Most importantly, this taxonomic study revises many of the names cited in the literature and proves
most of the alleged paleobiogeographic relationships wrong. The only biogeographic and stratigraphic surprise is the
record of Popovicia cf. compressa, a species described from lower Pliocene deposits of the Metohia Basin in Kosovo.
The majority of the fauna, however, has only been documented for the Turiec Basin, once more confirming the high
degree of its endemicity. The faunal relationships indicate a latest Middle to early Late Pannonian (Middle to Late
Tortonian) age, which is in agreement with available age models.
Key words: freshwater molluscs, taxonomy, endemicity, paleobiogeography, stratigraphy, Western Carpathians, Neogene.
“Oncophora beds” (today known as the Rzehakia beds,
Čtyroký et al. 1973), Remeš (1923) recorded the species Vivi-
parus oncophorae, Melanoptychia pseudoscalaria, Theo-
doxis (Neritodonta) aff. crenulata, Hydrobia sp., Theodoxis
sp., Congeria subclaviformis, and Oncophora sp. from the
Hrby locality near Bystrička. Additionally he mentioned
Stalioia gracilis from the Dolina locality near Martin.
The first “real” taxonomic work with synonymy lists, short
descriptions and illustrations was performed by Andrusov
(1954). He clearly discussed previous misidentifications and
partly synonymized them with the species observed by him-
self, namely Succinea (Amphibina) primaeva, Viviparus neu-
mayri, Melanoptychia sp., Theodoxus (Calvertia) crenulatus
crenulatus, and Congeria sp. ex gr. C. ornithopsis. In the
same year Pokorný (1954) reported a few terrestrial gastro-
pods and a sphaeriid bivalve with determinations on genus or
family level only. Further studies were carried out by A. On-
drejičková and M. Rakús, who produced manuscripts that
were unfortunately never published (see Kováč et al. 2011).
Some genus names deriving from published as well as un-
published data were mentioned by Kováč et al. (2011) and
Pipík et al. (2012), namely Viviparus, Theodoxus, Melanop-
sis, Hydrobia, Pyrgula, Lymnaea, Ancylus, Gyraulus, Plan-
orbis, Kosovia, Congeria, Unio, and Anodonta. Especially
the record of the genus Kosovia was eye-catching, since it is
a known endemite for basins in Kosovo and southern Serbia.
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Krstić et al. (2012) determined the species as Kosovia stro-
phostomopsis Milošević, 1965, which was originally de-
scribed from the Late Pontian (Early Pliocene) of the Metohia
Basin. Additionally they mentioned Lithoglyphus nanus
Roshka, 1973, a Maeotian species of the region SE of Odessa.
In summary, the few papers mentioning molluscs from the
Turiec Basin produce quite a motley collection of names de-
riving from various stratigraphic levels and geographical re-
gions. On the one hand, many of these names might raise
doubts about the identifications, given the deviating paleo-
biogeographic distribution. On the other hand, if these mol-
luscs were correctly determined, these findings would
reshuffle parts of the Late Miocene paleobiogeographic
framework. Consequently, one main task of this taxonomic
work is to clarify these and other ambiguities to straighten
up the paleobiogeographic framework of the Late Miocene in
this region. The second point regards taxonomy itself – since
the fauna has never been studied in detail and rarely figured,
this paper presents an important contribution to our knowl-
edge of Miocene freshwater faunas and to our understanding
of endemic faunas in the Miocene of Europe.
Geological setting
The geological history of the Turiec Basin is well under-
stood, supported by data from structural geology, sedimen-
tology, paleoecology, geochronology, geophysics, and
geomorphology (Buday 1962; Gašparík et al. 1974, 1995;
Konečný et al. 1983; Hók et al. 1998; Rakús et al. 2005;
Kováč et al. 2011; Pipík et al. 2012; Králiková et al. 2014).
The basin is a 40 km long and 10 km wide westward-dipping
halfgraben system with a sedimentary infill of up to 1200 m
thickness. It is enclosed by the Krivánska Malá Fatra Mts in
the north, the Lúčanská Malá Fatra Mts in the west, the
Ve ká Fatra Mts in the east, and the Kremnické vrchy Mts in
the southeast. Its southwestern part is delimited from the
Horná Nitra Basin by the Žiar Mts. The basement consists
mainly of the Mesozoic complexes of the Central Western
Carpathian paleo-Alpine tectonic units and in its northern
part also of Paleogene post-nappe sedimentary cover. The
basin became restricted during the Middle Miocene as a re-
sult of rapid uplift of the surrounding mountain chains and
volcanic activity.
Neogene sedimentation started during the late Middle
Miocene. The transtensional to extensional tectonic regime
during that time resulted in the subsidence of the southern
part of the basin. The initial phase of sedimentation is char-
acterized by a volcano-sedimentary complex in the southern
region, lacustrine fine-grained sedimentation in the northern
region, and subsequent alluvial fan deposits during the Late
Badenian to Early Pannonian (Early Serravallian to Early
Tortonian – Kováč et al. 2011). The main part of the Neo-
gene sediments is represented by the lacustrine Martin For-
mation, reaching from the late Middle Miocene up to the
earliest Pliocene (Kováč et al. 2011). Increased subsidence
along the uplifted mountains led to accumulations of its
clayey infill. Most of the known freshwater biota, including
the herein presented molluscs, derives from this unit, reflect-
ing the deposits of an isolated freshwater lake. On the basis
of the rich ostracod assemblages Pipík et al. (2012) defined
six paleoecological communities, allowing the ecological
and bathymetrical zonation of Lake Turiec during the Late
Miocene. Rapid uplift of the surrounding mountain chains
during the latest Miocene and Early Pliocene resulted in the
deposition of alluvial fans along the western, southwestern,
and northwestern basin margins. This is followed by Pleis-
tocene alluvial and river terrace deposits, which cover large
parts of the basin at present. For a detailed reconstruction of
the sedimentary history of the basin see Kováč et al. (2011).
Material and methods
The studied material is stored in the collection of the
Múzeum Andreja Kme a in Martin, Slovak Republic. It de-
Fig. 1. Geographical sketch of the Turiec Basin in northern Slovakia
with indication of sampled localities (modified after Kováč et al.
2011; Pipík et al. 2012). Grey areas display larger villages, filled
circles the localities mentioned in the text.
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rives from drill cores and several outcrops sampled by Miloš
Rakús in the 1950s and 1990s in the Turiec Basin (Fig. 1).
Consequently any quantitative study is not possible. Some
specimens were cleaned from sediment particles with an ul-
trasonic device. The SEM-photos were produced with a
JEOL JSM-6610LV at the Natural History Museum Vienna
using an output voltage of 15 kV.
Systematic paleontology
The systematical arrangement follows Bouchet & Rocroi
(2005), Jörger et al. (2010), Criscione & Ponder (2013), and the
FreshGEN database (Neubauer et al. 2014b).
Class: Gastropoda Cuvier, 1795
Subclass: Neritimorpha Golikov & Starobogatov, 1975
Order: Cycloneritimorpha Frýda, 1998
Superfamily: Neritoidea Rafinesque, 1815
Family: Neritidae Rafinesque, 1815
Subfamily: Neritininae Poey, 1852
Genus: Theodoxus Montfort, 1810
Type species: Theodoxus lutetianus Montfort, 1810
(currently considered as a synonym of Theodoxus fluviatilis
(Linnaeus, 1758)). Recent, Europe. Type by original desig-
nation (Welter-Schultes 2012).
Theodoxus cf. postcrenulatus Papp, 1953
(Fig. 2A—C)
1923 Theodoxis (Neritodonta) aff. crenulata Klein – Remeš, p. 113
?cf. 1953 Theodoxus (Theodoxus) postcrenulatus n. sp. Papp, p. 96,
pl. 2, figs. 1—3
1954 Theodoxus (Calvertia) crenulatus crenulatus (Klein) – An-
drusov, p. 257 [non Neritina crenulata Klein, 1853]
?cf. 1997 Theodoxus (Theodoxus) postcrenulatus Papp, 1953 – For-
dinál, p. 267, pl. 1, fig. 1
?cf. 2004 Theodoxus postcrenulatus Papp – Harzhauser & Tempfer, p. 60
Material: 10 specimens from Martin brickyard, coll. nos.
SNM 9/2011 (PZ-696), SNM 12/2011 (PZ-699a-d); 1 speci-
men from Trebostovo (Drill core GT-11), coll. no. SNM
171/2006 (PZ-573); height: 5.5 mm, width: 6.5 mm (largest
specimen).
Description: Shell small, sturdy, with ca. 2.5 whorls.
Apex very low, in some specimens fully immersed. Apical
region slightly flattened to convex; grades over a highly con-
vex shoulder into the steep, straight base. Aperture inclined
with about 60°; perfectly semicircular in shape. Callus mod-
erately thickened, with weakly granulated surface; forms a
shallow ramp towards a sharp, densely but weakly serrated
edge, which lies below the plane formed by the aperture.
This inclination produces weak incisions, where the callus
touches the apertural margin (adapically as well as abapi-
cally). In a single specimen colouring is preserved as dark,
broad, widely-spaced zigzag lines on white ground.
Remarks: It is extremely difficult to distinguish the many
Theodoxus species-group taxa that have been introduced for
the Miocene of the Pannonian region (e.g. Handmann 1887;
Brusina 1892, 1902; Jekelius 1944; Papp 1953). Since many
of these were established based on different colour patterns
only, which has been shown to be not taxonomically relevant
(see e.g. Welter-Schultes 2012), many may actually represent
junior synonyms of others. The present species fits morpho-
logically (as well as concerning the colouring) well with the
specimens described and illustrated by Papp (1953) as Theo-
doxus postcrenulatus. It corresponds in the presence of small
teeth and a weakly granulated callus. The main difference is
the distinctly larger size of the Austrian specimens (ca.
10 mm – Papp 1953). Therefore, the identification remains
somewhat uncertain. It could be that the few available speci-
mens are not fully grown individuals.
The present species differs from the similar T. intracarpati-
cus Jekelius, 1944, which has a more elongated shell, a more
thickened callus and less distinct teeth (if at all), and T. soceni
Jekelius, 1944, which has a higher apex and thus appears
bulkier (see also Harzhauser et al. 2002).
Andrusov (1954) mixed up the species with Theodoxus
crenulatus (Klein, 1853), a wide-spread species throughout the
Middle Miocene of Central Europe (Wenz 1929; Schlickum
1976; Bartha 1979; Binder 2003; Harzhauser et al. 2012),
which differs in its slightly more elevated spire.
Distribution: Up to now only recorded from Late Mio-
cene localities of the Vienna Basin (Götzendorf, Austria,
Pannonian F, Papp 1953; Pezinok, Slovakia, Pannonian E,
Fordinál 1997).
Subclass: Caenogastropoda Cox, 1960
Superfamily: Viviparoidea Gray, 1847
Family: Viviparidae Gray, 1847
Subfamily: Viviparinae Gray, 1847
Genus: Viviparus Montfort, 1810
Type species: Viviparus fluviorum Montfort, 1810 (cur-
rently considered as a synonym of Viviparus viviparus (Lin-
naeus, 1758)). Recent, Northern Eurasia, Europe, Anatolia
and Northern America. Type by original designation (Welter-
Schultes 2012).
Viviparus pipiki Neubauer & Harzhauser nov. sp.
(Fig. 2D—J)
1866 Paludina Sadleri – Andrian, p. 196 [non Vivipara sadleri Neu-
mayr, 1869]
1923 Viviparus oncophorae Rzehak – Remeš, p. 113 [non Vivipara on-
cophorae Rzehak, 1893]
1954 Viviparus neumayeri [sic] (Brusina) – Andrusov, p. 257, pl. 16,
figs. 12—13 [non Vivipara neumayri Brusina, 1874]
Material: More than 100 specimens from Martin brick-
yard, coll. nos. SNM 1/2011 (PZ-688a—o), SNM 2/2011
(PZ-689a—ch), SNM 3/2011 (PZ-690a,b), SNM 4/2011
(PZ-691a—k), SNM 5/2011 (PZ-692a—c), SNM 11/2011
(PZ-698), SNM 16/2011 (PZ-703a—e).
Holotype: SNM 11/2011 (PZ-698); height: 28.8 mm,
width: 22.3 mm (Figs. 2D—E).
Paratype: SNM 11/2011 (PZ-698); height: 32.5 mm,
width: 23.7 mm (Figs. 2F—G).
Stratum typicum: Martin Formation, Upper Miocene.
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Type locality: Brickyard near the town of Martin, Turiec
Basin, Slovak Republic; 49°04’ N, 18°53’ E.
Name: In honour of Radovan Pipík (Slovak Academy of
Sciences, Banská Bystrica), who greatly contributed to our
knowledge of Lake Turiec.
Diagnosis: Broad, conical viviparid with up to 6 whorls;
spire angle distinctly decreases during ontogeny, while
whorl convexity increases towards highly convex whorls in
later ontogeny.
Description: Protoconch depressed, almost planispirally
coiled, covered by weak axial wrinkles; termination indiscern-
ible, whorl number unknown. Both degree of convexity and
spire angle change distinctly during ontogeny: early whorls
broadly conical (spire angle of ca. 120°), weakly convex,
tightly coiled, with widely ovoid aperture (Fig. 2J). Adult
Fig. 2. A – Theodoxus cf. postcrenulatus Papp, 1953 (SNM 12/2011, PZ-699); B – T. cf. postcrenulatus (SNM 9/2011, PZ-696);
C – T. cf. postcrenulatus (SNM 12/2011, PZ-699); D—E – Viviparus pipiki nov. sp., holotype (SNM 11/2011, PZ-698); F—G – V. pipiki,
paratype (SNM 11/2011, PZ-698); H – V. pipiki, protoconch (SNM2/2011, PZ-689); I – V. pipiki, protoconch (SNM 2/2011, PZ-689);
J – V. pipiki, juvenile specimen (SNM 3/2011, PZ-690). All specimens from Martin brickyard. Scale bars correspond to 100 µm (H—I),
1 mm (A—C, J), and 10 mm (D—G).
shells conical to weakly ovoid (ca. 50—60°) with strongly con-
vex, entirely non-stepped whorls. Height-width ratio of adult
shells slightly variable: shells usually rather broad, occasion-
ally more slender specimens occur (Fig. 2F—G). Shell com-
prises up to 6 whorls. Last whorl attains 70—75 % of total
height. Aperture broadly drop-shaped, with small posterior
notch. Distinct sigmoidal growth lines (adapically opistho-
cyrt, abapically prosocyrt) cover shell.
Remarks: Owing to its thick shell this species is among
the most common and best preserved ones in the Turiec Ba-
sin. It looks very similar to Viviparus neumayri Brusina,
1874 from the Pliocene “Paludina beds” of Croatia, match-
ing in degree of convexity and shell shape (see also Neumayr
& Paul 1875). However, this species is distinctly smaller and
whorl height increases more slowly than in the present spe-
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cies, resulting in a relatively shorter spire. Another compara-
ble species is Viviparus loczyi Halaváts, 1903, from the Late
Pannonian of the Balaton region, which has a similar shape,
but it has less convex whorls and tends to be more slender.
Andrian (1866) confused the present species with Vivi-
parus sadleri Neumayr, 1869, which differs in its distinctly
stepped spire. Remeš (1923) in turn determined it as V. onco-
phorae Rzehak, 1893, which was described from the Early
Miocene of Moravia and likewise has a stepped spire. Wenz
(1928) erroneously introduced the replacement name Vivi-
parus oncophoriorum for Rzehak’s taxon to separate it from
Vivipara ( = Viviparus) oncophora Brusina, 1874. This error
is probably based on a reading error by Wenz, who cited
Rzehak’s species also as “Vivipara oncophora” and thus re-
ferred to it as a primary homonym. This nomenclatural act,
however, is invalid. The Code clearly states that a one-letter
difference between species-group names combined with the
same generic name is sufficient to prevent homonymy (ICZN
1999, Art. 57.6). The exceptions to this rule mentioned in
Article 58 do not apply here. Hence, the name Vivipara onco-
phorae was validly introduced by Rzehak (1893). Viviparus
oncophoriorum Wenz, 1928 is an objective synonym of Vivi-
parus oncophorae Rzehak, 1893.
Distribution: Endemic to the Turiec Basin.
Genus: Popovicia Neubauer & Harzhauser nov. gen.
1964 Metohia nov. gen. – Popović, p. 47
1968 Metohia nov. gen. – Popović, p. 206
Type species: Metohia levantica Popović, 1964.
Pliocene (Early Dacian), Kosovo.
Other included species: Kosovia compressa Pavlović,
1931 (Late Pontian), Metohia turriculoidea Popović, 1964
(Late Dacian).
Name: In honour of Radmila Popović (formerly in the In-
stitute of Geological and Geophysical Research, Belgrade),
who intensively studied the Viviparidae of the Metohia Basin.
Diagnosis: Shell planispiral to trochiform, sinistrally
coiled, attaining up to 4 whorls. Apex shallow to deeply im-
mersed. Umbilicus immersed in planispiral shells, but raised
and flattened in trochiform shells, producing pseudo-dextral
appearance. Whorls regularly convex to angulated, but never
resulting in offset keel; ramp above shoulder straight, whorl
portion below convex. Sutures deep. Sculpture may be present
as weak to distinct spiral keels.
Remarks: Several nomenclatorial issues concerning the
alleged viviparid genera Metohia and Kosovia have strained
the literature so far. First of all, Metohia Popović, 1964 is a
primary homonym of Metohia Absolon, 1927 (Ostracoda),
which is why we introduce Popovicia as a replacement name
here. The second genus, Kosovia, with which the species dis-
cussed below was originally affiliated, is not available from
the original publication (Pavlović 1931), since no type spe-
cies was fixed (ICZN 1999, Art. 13.3). The first to indicate a
type species, namely Kosovia ornata Pavlović, 1931, was
Atanacković (1959). He clearly referred to Pavlović’s work
and description, which is sufficient as indication for the ge-
nus (Art. 13.1.2) and makes him the author of Kosovia. Zilch
(1959—1960), who claimed to fix the type species as well,
was published later (17 July, 1959).
The subfamily Kosoviinae as found in the literature was
never described and is therefore unavailable. Atanacković
(1959) first uses the name (as “Kosovinae”, but see Art. 29 of
the Code), but did not describe it or added a bibliographic ref-
erence as indication. The only other mention in the literature is
by Milošević (1978), who did not describe it either. Since we
do not aim at a systematic revision, a solution to the system-
atic placements of Kosovia and Popovicia is still pending.
Following Atanacković (1959), we place it preliminarily in
the Viviparidae.
Distribution: Only known from the Metohia Basin, Ko-
sovo, and the Turiec Basin.
Popovicia cf. compressa (Pavlović, 1931)
(Fig. 5B)
cf. 1931 Kosovia compressa nov. spec. Pavlović, p. 21, pl. 11, figs. 11—13
cf. 1964 Metohia compressa (Pavl.) – Popović, p. 50, 53, pl. 3, fig. 1,
pl. 4, fig. 1
cf. 1965 Kosovia strophostomopsis strophostomopsis nov. spec. Milo-
šević, p. 116, text-fig. 3, pl. 1, fig. 1
cf. 1965 Kosovia strophostomopsis compressiforma nov. s. spec. Milo-
šević, p. 120, pl. 1, fig. 2
cf. 1965 Kosovia compressa Pavl. – Milošević, pl. 1, fig. 4
cf. 1967 Kosovia strophostomopsis V. Miloš. – Milošević, text-fig. 4a
cf. 1967 Kosovia s. compressiforma V. Miloš. – Milošević, text-fig. 4b
cf. 1968 Metohia compressa (Pavl.) – Popović, p. 208, 216, pl. 3,
fig. 1, pl. 4, fig. 1
cf. 1970 Kosovia strophostomopsis V. Milošević – Milošević, text-fig. 2B
2011 Kosovia – Kováč et al., p. 371
2012 Kosovia stromphostomopsis [sic] – Krstić et al., p. 44
Material: 1 specimen from Trebostovo (Drill core GT-11),
coll. no. SNM 161/2006 (PZ-563); height: 4.5 mm, diame-
ter: 11 mm (Fig. 5B).
Description: Small sinistral, planorbiform shell com-
posed of 3.25 whorls. Protoconch unknown. Early whorls
apically flattened, forming a weakly convex plane; traces of
weak striation present. Last whorl overgrows previous ones,
forms a distinct crest at its uppermost part, which separates
an inner concave portion and an outer convex portion. Inner
concave portion shows weak striation. In profile a weak an-
gulation occurs slightly below whorl midline. In latest on-
togeny the apertural margin starts to expand funnel-like:
while the peristome becomes strongly inflated, the actual ap-
ertural opening inside retains its original width.
Remarks: The specimen from Turiec is highly reminiscent
of Popovicia compressa (Pavlović, 1931), which was de-
scribed from the Late Pontian (earliest Pliocene) of the Meto-
hia Basin in Kosovo. It matches perfectly concerning general
shape and apertural inflation. The main difference is the pres-
ence of seven distinct spiral keels in the Kosovan species,
which could not be observed to such an extent on the Turiec
specimen; this, however, could be a result of the moderate
preservation. Moreover, like the mode of apertural inflation
this feature seems to be quite variable (Popović 1964). The
Turiec specimen is also generally smaller and probably re-
flects a subadult specimen (3.25 whorls at 11 mm diameter
versus 4 whorls at ca. 15 mm for typical P. compressa).
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The taxonomic history of the genus Metohia Popović,
1964 ( = Popovicia) and the included species is very compli-
cated and needs some discussion here in order to avoid fu-
ture confusion. Popović (1964) described the new genus
Metohia to separate planorbiform and low trochiform shells
among the Kosoviinae from the high trochiform, sinistral
Kosovia species (see also Pavlović 1931; Atanacković 1959).
Additionally, she described the two new species M. levantica
and M. turriculoidea. One year later Milošević (1965) intro-
duced the new species Kosovia strophostomopsis and two
new subspecies, K. strophostomopsis compressiforma and
K. strophostomopsis disjuncta, all of which are strikingly
similar to the two species of Popović. Despite citing the paper
of Popović in the reference section, Milošević did not dis-
cuss it at all. Only two years later Milošević (1967) referred
to the topic again, when discussing the systematic position
of Kosovia compressa. Again he did not comment on the
morphological similarities between Popović’s and his spe-
cies. To complete the confusion Popović (1968) re-published
exactly the same paper as in 1964 in a different journal. Un-
fortunately, all the names were again marked as new, mis-
leadingly pretending first descriptions.
Subsequently, Popović (1969) synonymized K. strophosto-
mopsis with Metohia levantica and regarded both K. strophos-
tomopsis compressiforma and K. strophostomopsis disjuncta
as intermediate stages between Metohia levantica and M. tur-
riculoidea. This taxonomic act was rejected by Milošević
(1970) for two reasons. First, he differentiated between his
“pseudo-sinistral” Kosovia forms and the “dextral” Metohia
species. Given the full correspondence of morphologies this
differentiation is untenable. Second, Milošević (1970) stated
stratigraphical discrepancies: while K. strophostomopsis and
its two subspecies are described from Late Pontian (earliest
Pliocene) strata, M. levantica and M. turriculoidea were re-
corded from Dacian deposits (middle Early Pliocene). He did
not agree with the idea of Popović (1969) that all these species
may actually derive from Dacian layers. More precisely, he
stated that his species come from sediments above the main
Fig. 3. A, D – Melanopsis glaubrechti nov. sp., paratype (SNM 10/2011, PZ-697), specimen digitally recombined from two separate im-
ages; B – M. glaubrechti, juvenile shell (SNM 10/2011, PZ-697); C — M. glaubrechti, holotype (SNM 16/2011, PZ-703g); E – Tournouerina
turiecensis nov. sp., paratype 1 (SNM 10/2011, PZ-697); F – T. turiecensis, holotype (SNM 9/2011, PZ-696); G – T. turiecensis,
paratype 2 (SNM 10/2011, PZ-697); H – T. turiecensis, paratype 3 (SNM 10/2011, PZ-697); I – T. turiecensis, protoconch (SNM 10/2011,
PZ-697). All specimens from Martin brickyard. Scale bars correspond to 100 µm (I), 1 mm (D—H), and 5 mm (A—C).
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coal seam. However, the latest stratigraphical investigation by
Elezaj et al. (2010) indeed confirmed the Dacian age of the de-
posits containing the Metohia ( = Popovicia) species, with P.
levantica marking Lower Dacian deposits and P. turriculoidea
occurring in Upper Dacian layers.
Given the different extent of Pontian, Dacian, and Roma-
nian deposits in the Metohia Basin it is most likely that
Milošević misjudged the age of the deposits. The type locali-
ties of Popović’s Dacian species are located in the south
(Orahovac) and southwest (Trakanić brook at Çabrat hill
near Gjakovë) of the Metohia Basin, where Pontian sedi-
ments are very restricted (S) to absent (SW) (Atanacković
1990). In contrast, the type locality of Milošević’s species is
right in the centre of the basin (Deiq), where Pontian to Ro-
manian deposits have been documented (Popović 1970;
Milošević 1983; Atanacković 1990). Geographically, all the
type localities involved lie within a 30-km radius.
In summary, we fully agree with Popović (1969) concern-
ing the stratigraphical attribution to the Dacian. However,
we rather tend to synonymize K. strophostomopsis stropho-
stomopsis and K. strophostomopsis compressiforma with
Popovicia compressa and K. strophostomopsis disjuncta
with Popovicia levantica. Since the evolutionary change
throughout the Late Pontian and Dacian seems continuous, it
is anyway difficult to draw a line between taxonomic entities
(compare, e.g. Neubauer et al. 2013a,b). More detailed work
on type material would be necessary to clarify this issue.
Distribution: Up to now only recorded for Upper Pon-
tian deposits of the Metohia Basin (Pavlović 1931, 1932;
Popović 1964) and the Turiec Basin.
Superfamily: Cerithioidea Fleming, 1822
Family: Melanopsidae H. Adams & A. Adams, 1854
Subfamily: Melanopsinae H. Adams & A. Adams, 1854
Genus: Melanopsis Férussac, 1807
Type species: Melania costata Olivier, 1804. Recent,
Europe. Subsequent designation by Gray (1847, p. 153).
Melanopsis glaubrechti Neubauer & Harzhauser nov. sp.
(Fig. 3A—D)
1923 Melanoptychia pseudoscalaria Sdbg. – Remeš, p. 113 [non
Melanoptychia pseudoscalaria Sandberger, 1886]
1954 Melanoptychia sp. – Andrusov, p. 257, pl. 16, figs. 14—17
Material: More than 30 specimens and fragments from
Martin brickyard, coll. nos. SNM 5/2011 (PZ-692), SNM
9/2011 (PZ-696), SNM 10/2011 (PZ-697), SNM 13/2011
(PZ-700), SNM 16/2011 (PZ-703a, f—g, ch).
Holotype: SNM 16/2011 (PZ-703g); height: 12.5 mm,
width: 5 mm (Fig. 3C).
Paratype: SNM 10/2011 (PZ-697), juvenile shell; height:
8.8 mm, width: 4.6 mm (Fig. 3A,D).
Stratum typicum: Martin Formation, Upper Miocene.
Type locality: Brickyard near the town of Martin, Turiec
Basin, Slovak Republic; 49°04’ N, 18°53’ E.
Name: In honour of Matthias Glaubrecht (Museum für
Naturkunde Berlin), an expert for the living species of Mela-
nopsidae.
Diagnosis: Small ovoid melanopsid with distinct ribs,
which descend adapically over a small knob down to the su-
ture. The ribs and the relief of the ribs of the penultimate
whorl, which are clearly visible in early ontogeny, are not
regularly aligned, producing irregular sculpture pattern be-
low the sutures.
Description: Slender, drop-like shell, attaining its maxi-
mum diameter on the penultimate whorl and maintains this
on the last whorl, which attains almost 50 % of total height.
Protoconch poorly preserved but small and smooth. Includ-
ing the protoconch, the shell comprises up to 9 whorls. The
typical features are the strong axial ribs, which start faintly
on the 3
rd
to 4
th
whorl. They form a strong crest of uniform
elevation in the lower (abapical) three quarters of the whorls.
Above, the ribs terminate in a small knob; in the uppermost
quarter, the ribs rapidly slope down from the knob towards
suture. In early ontogeny this produces a thin, weakly sculp-
tured band in the uppermost part of the whorl. This weak
sculpture is not produced by down-sloping ribs, but by ribs
of the penultimate whorl, whose abapical portions can be
traced beyond a thin shell layer. Since the number of ribs is
not equal on each whorl, ribs and relief of ribs of penultimate
whorl are not regularly aligned (Fig. 3D). In such cases, where
“pseudo-ribs” run between two ribs, they may reach down to
the level of knobs but never beyond. Aperture ovoid, some-
times with columellar fold; no thickened callus present.
Remarks: This species is reminiscent of specimens from
the Pannonian F of Götzendorf in the Vienna Basin illustrated
by Papp (1953, pl. 12, figs. 16—17), determined as Melanopsis
bouei sturii Fuchs, 1873. A very similar specimen as shown
by Papp was documented by Fordinál (1993, pl. 12, fig. 4)
from the Pannonian of the Bratislava area. Both correspond
to M. glaubrechti concerning the general outline and the ar-
rangement of the ribs with terminating adapical knobs. How-
ever, direct comparison with material from Götzendorf
shows subtle but consistent differences: M. sturii has a highly
regular morphology, with even suture, smooth subsutural
band, and often intentions of a second row of weak knobs
near the whorl base. In contrast, M. glaubrechti has a fairly
irregular suture line, the typical irregular sculpture pattern
below the sutures, and just one row of knobs. The overall
similarity still hints at a close phylogenetic relationship be-
tween the two species.
The present species also differs from “M. boettgeri Hala-
váts, 1903”, which has a conical shell and distinctly stronger
knobs forming a spruce-like outline. This species name is a pri-
mary homonym of M. boettgeri Klika, 1891 and was replaced
by Cossmann (1909) with the new name M. balatonensis.
Both Wenz (1929) and Papp (1953), who obviously overlooked
this, synonymized this species with M. sturii. The similar spe-
cies M. pseudaustriaca Sauerzopf, 1952 differs in its distinctly
conical outline and the entirely smooth subsutural band.
Remeš (1923) refers to this species as Melanoptychia pseu-
doscalaria, which was described from the Lower Miocene
“Oncophora beds” (Rzehakia beds) of Moravia. This species
can be distinguished based on its much higher last whorl and
the considerably thickened callus. Moreover, the ribs termi-
nate directly at the upper suture (Rzehak 1893, pl. 2, fig. 7).
Distribution: Endemic to the Turiec Basin.
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Order: Littorinimorpha Golikov & Starobogatov, 1975
Superfamily: Truncatelloidea Gray, 1840
Family: Hydrobiidae Stimpson, 1865
Subfamily: Hydrobiinae Stimpson, 1865
Genus: Tournouerina Schlickum, 1971
Type species: Nematurella lugdunensis Tournouër, 1879.
Pliocene, France. Type by original designation.
Tournouerina turiecensis Neubauer & Harzhauser nov. sp.
(Fig. 3E—I)
?2012 Lithoglyphus nannus [sic] – Krstić et al., p. 44 [non Lithoglyphus
nanus Roshka, 1973]
Material: 35 specimens from Martin brickyard, coll. nos.
SNM 9/2011 (PZ-696), SNM 10/2011 (PZ-697), SNM 13/2011
(PZ-700).
Holotype: SNM 9/2011 (PZ-696); height: 4.0 mm,
width: 2.2 mm (Fig. 3F).
Paratype 1: SNM 10/2011 (PZ-697); height: 4.8 mm,
width: 3.0 mm (Fig. 3E).
Paratype 2: SNM 10/2011 (PZ-697); height: 4.5 mm,
width: 2.1 mm (Fig. 3G).
Paratype 3: SNM 10/2011 (PZ-697); height: 4.2 mm,
width: 2.1 mm (Fig. 3H).
Stratum typicum: Martin Formation, Upper Miocene.
Type locality: Brickyard near the town of Martin, Turiec
Basin, Slovak Republic; 49°04’ N, 18°53’ E.
Name: After the Turiec Basin.
Diagnosis: Small, ovoid hydrobiid with up to 6 convex
whorls, separated by moderately deep sutures, a large last
whorl, and an inclined, broadly drop-shaped aperture with a
thickened posterior tip.
Description: Shell small, composed of 6 whorls. Shell
shape is variable, reaching from rather broadly ovoid to slen-
der, almost conical. Protoconch low trochiform, consisting
of exactly 1 highly convex whorl with a diameter of 300 µm;
termination indicated by indistinct growth rim; surface
throughout covered with small, densely arranged, weak but
consistent wrinkles, which partly merge into irregular, indis-
tinct axial riblets. Teleoconch whorls distinctly and regularly
convex, separated by moderately deep sutures. Last whorl at-
tains ca. 70 % of total height. Aperture broadly, regularly
drop-shaped, weakly inclined (20—30° to axis), with uninter-
rupted, slightly reflected peristome. Inner lip weakly pro-
truding below posterior tip. Aperture growing increasingly
in anterior direction in latest stage, producing a thickened
posterior tip, with former shell layers distinctly visible. Um-
bilicus narrow; in slender specimens almost fully covered by
aperture. Faint, weakly prosocyrt growth lines cover shell.
Remarks: After detailed literature review and study of
fossil material, we are not aware of a single hydrobiid spe-
cies in the Mio-Pliocene of Europe that might be conspecific
with the present one. The characteristic ovoid aperture with
the thickened posterior tip and the narrow umbilicus argues
for an affiliation with the genus Tournouerina (e.g. Schlickum
1971, 1978; Schlickum & Puisségur 1977, 1978; Meijer
1989). Even the curvature of the aperture in side-view
matches perfectly with the illustrations of Schlickum (1978).
Especially the type species T. lugdunensis (Tournouër, 1879)
from the Pliocene of Miribel (Ain, France) is very similar in
terms of outline shape, but it has less convex whorls and a
less bulbous last whorl.
Some species of the genus Prososthenia Neumayr, 1869
also exhibit certain similarities, like P. sepulcralis Partsch
in Cžjžek, 1848 from Lake Pannon. This species differs in
its clearly less convex whorls, the less inclined aperture,
and the weak angle at the base, producing a conical outline
(Papp 1953; Harzhauser & Binder 2004). The Pannonian
Hydrobia testulata Papp, 1953, which was synonymized
with Hydrobia pseudocornea Brusina, 1902 by Harzhauser
& Binder (2004), has similar shape and size, but clearly
differs in the aperture, which lacks the thickened posterior
tip, and the more convex whorls. Another very similar Pan-
nonian species is Caspia boeckhi (Lörenthey, 1902) from
Tinnye, Hungary, which can be distinguished by the more
conical outline, formed by a distinct angle on the last
whorl, and the whorl convexity, which lies below the median.
The quite variable Middle Miocene Prososthenia neutra
Brusina, 1897 from Miočić, Croatia, has a less bulbous last
whorl and a stronger inclined aperture resulting in an al-
most covered umbilicus. The likewise variable Dacian spe-
cies Hydrobia arminiensis Jekelius, 1932 from the Bra ov
Basin has a wider aperture that almost or fully covers the
umbilicus, in most cases a bigger last whorl, and more con-
vex whorls.
Most likely the identification of Krstić et al. (2012) as
Lithoglyphus nanus Roshka, 1973 [misspelt as “nannus”] ac-
tually reflects the present species. Lithoglyphus nanus is
a Late Miocene taxon from the Eastern Paratethys and has
a much bulkier shell with bigger last whorl and strongly
inclined aperture. Whether or not the records of Hydrobia sp.
from Hrby and “Stalioia [sic] gracilis” from Dolina by
Remeš (1923) correspond to the present species could not
be verified. The material from Dolina available to us com-
prises lithified freshwater limestones with unidentifiable
fragments of shelly impressions and molds. As correctly
pointed out by Andrusov (1954), the name Stalioa gracilis
has to be replaced with Stalioa rzehaki. Wenz (1925) consid-
ered Staliopsis gracilis Rzehak, 1893 and Euchilus gracile
Sandberger, 1875 congeneric, making the former a second-
ary homonym of the latter. For Staliopsis gracilis he intro-
duced the replacement name Stalioa rzehaki Wenz, 1925.
Currently it is again affiliated with Staliopsis (Čtyroký
1972).
Distribution: Endemic to the Turiec Basin.
Clade: Panpulmonata Jörger et al., 2010
Order: Hygrophila Férussac, 1822
Superfamily: Lymnaeoidea Rafinesque, 1815
Family: Lymnaeidae Rafinesque, 1815
Subfamily: Lymnaeinae Rafinesque, 1815
Genus: Radix Montfort, 1810
Type species: Helix Auricularia Linnaeus, 1758. Recent,
Europe. Type by original designation (Welter-Schultes 2012).
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Fig. 4. Radix kovaci nov. sp. A – Holotype (SNM 114/2006, PZ-517), Mošovce (GT-14); B – Juvenile specimen (SNM 148/2006, PZ-550),
Horná Štubňa (GHŠ-1); C – Paratype 1 (SNM 155/2006, PZ-557), Horná Štubňa (GHŠ-1); D – Paratype 3 (SNM 121/2006, PZ-524a),
Mošovce (GT-14); E – Paratype 2, (SNM 153/2006, PZ-555), Horná Štubňa (GHŠ-1); F — Sediment infills of apertures of two specimens
(SNM 118/2006, PZ-521), Mošovce (GT-14). Scale bars correspond to 10 mm.
Radix kovaci Neubauer & Harzhauser nov. sp.
(Fig. 4A—F)
Material: Several tens of specimens in different ontoge-
netic stages, from following localities: Mošovce (Drill core
GT-14), coll. nos. SNM 114/2006 (PZ-517), SNM 117-119/
2006 (PZ-520-522), SNM 121/2006 (PZ-524b), SNM 120/
2006 (PZ-523); Horná Štubňa (Drill core GHŠ-1), coll. nos.
SNM 144-145/2006
(PZ-546-547),
SNM 146-154/2006
(PZ-548-561), SNM 136-143/2006 (PZ-538-545); Koš any
nad Turcom (Drill core GT-13), coll. nos. SNM 107-113/2006
(PZ-510-516).
Holotype: SNM 114/2006 (PZ-517); height: 14 mm, dia-
meter: 16 mm (Fig. 4A).
Paratype 1: SNM 155/2006 (PZ-557), from drill core
GHŠ-1, Horná Štubňa; height: 10.8 mm, diameter: 8.5 mm
(Fig. 4C).
Paratype 2: SNM 153/2006 (PZ-555), from drill core
GHŠ-1, Horná Štubňa; height: 11.4 mm, diameter: 11.2 mm
(Fig. 4E).
Paratype 3: SNM 121/2006 (PZ-524a), from type locality;
sediment infill of aperture; height: 15.5 mm, diameter:
16.6 mm (Fig. 4D).
Stratum typicum: Martin Formation, Upper Miocene
(drilling depth 229.5—229.6 m).
Type locality: Mošovce (Drill core GT-14), Turiec Basin,
Slovak Republic; 48°54’ N, 18°53’ E.
Name: In honour of Michal Kováč (Univerzita Komen-
ského, Bratislava), who intensively worked on the sedimen-
tary evolution and stratigraphy of the Pannonian Basin
System and adjacent areas.
Diagnosis: Moderately sized Radix with rapidly expand-
ing whorls towards an extremely large aperture, finally over-
growing the spire.
Description: Most of the material does not allow a proper
description. The few complete or nearly so specimens show
a shell with ca. 4 whorls, a very small and short spire, and
an extremely rapidly expanding last whorl. The direction of
expansion forms an angle of usually around 55° to the col-
umella. Aperture prominent, elliptical to almost round, ter-
minates in sharp peristome. Where it touches base of
penultimate whorl it forms small notch. Degree and direction
of apertural expansion as well as apertural shape highly vari-
able. Apparently expansion continues throughout ontogeny,
so that aperture even overgrows entire spire in latest ontogeny;
in abapertural view this produces bulky, cap-like appear-
ance. Some specimens show elongate shape due to stronger
lateral expansion of the aperture.
Remarks: After careful review of the rich literature we
are still not aware of any lymnaeid species of the Mio-
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Pliocene of Europe that might be conspecific with this shell.
The uniquely formed aperture distinguishes it from all other
known species. Most of the available specimens are pre-
served as mere impressions or sediment fillings of the last
aperture, which form cap-like molds. The alleged records of
Ancylus mentioned in the literature probably refer to these
fillings as indicated by the museum labels. The final growth
stage with the inflated aperture is also reminiscent of species
of the genus Hiscerus Gorjanović-Kramberger, 1923, a lym-
naeid with cap-shaped, oval shells (see Gorjanović-Kram-
berger 1923; Moos 1944). These, however, are much more
bulbous and usually have a wrinkled surface.
The only rather similar taxon is Radix kobelti (Brusina,
1884) from the Pannonian of the Zagreb area, which also ex-
hibits a very wide aperture, but differs in the lower spire and
the almost horizontally oriented and stronger expressed ex-
pansion. Moreover, shells of R. kobelti are distinctly larger
(see also Brusina 1897; Gorjanović-Kramberger 1923).
Distribution: Endemic to the Turiec Basin.
Radix sp.
(Fig. 5A)
Material: 1 specimen from Martin (Drill core ZGT-3),
coll. no. SNM 183/2006 (P-520a); height: 27 mm, width
15.5 mm.
Remarks: A second Radix species is documented by a
single, moderately preserved specimen. It can be easily dis-
tinguished from the co-occurring R. kovaci by its huge but
slender shell. A determination at species level is not possible
as the aperture is covered with sediment.
Superfamily: Planorboidea Rafinesque, 1815
Family: Planorbidae Rafinesque, 1815
Genus: Planorbarius Duméril, 1806
Type species: Helix cornea Linnaeus, 1758. Recent,
Europe. Subsequent monotypy by Froriep (1806, p. 165).
Planorbarius nov. sp.
(Fig. 5C)
?1866 Planorbis pseudoammonius – Andrian, p. 196 [non Helicites
pseudoammonius Schlotheim, 1820]
Material: Several fragments and impressions from the fol-
lowing localities: Horná Štubňa (Drill core GHŠ-1), coll. no.
SNM 160/2006 (PZ-562a,b); Martin (Drill core ZGT-3), coll.
no. SNM 190/2006 (PZ-579); Martin brickyard (compressed),
coll. no. SNM 13/2011 (PZ-700); Turčiansky Peter (Drill core
GT-6, 37.2—37.3 m), coll. no. SNM 180/2006 (PZ-517); height:
6.5 mm, diameter: 18 mm (most complete specimen, Fig. 5C).
Description: Most complete specimen attains 4.5 whorls
at a maximum diameter of 18 mm. Whorls appear regularly
convex and increase regularly in diameter. Up to penultimate
whorl apical region flat, not depressed; only last whorl dis-
tinctly elevated. Umbilical region unknown. Growth lines
but no horizontal striation visible.
Fig. 6. Bivalves. A—C – Mytilopsis? sp. (SNM 9/2011, PZ-696), juvenile specimen, Martin brickyard; D – Pisidium sp. (SNM 13/2011,
PZ-700b), Martin brickyard; E – Unio cf. atavus Hörnes, 1865 (SNM 14/2011, PZ-701), Martin brickyard; F – U. cf. atavus (SNM 7/2011,
PZ-694c), Martin brickyard; G – U. cf. atavus (SNM 7/2011, PZ-694a), Martin brickyard; H – Mytilopsis? sp. (SNM 166/2006, PZ-568),
Martin brickyard; I – Lymnocardiinae gen. et sp. indet. 1 (SNM 380/1968, G-129), Martin-Záturčie (BJ-2); J – Lymnocardiinae gen. et
sp. indet. 1 (SNM 380/1968, G-129), Martin-Záturčie (BJ-2); K – Lymnocardiinae gen. et sp. indet. 2 (SNM 380/1968, G-129), Martin-
Záturčie (BJ-2). Scale bars correspond to 200 µm (C), 1 mm (A—B, D), 5 mm (I—K), and 10 mm (E—H).
Fig. 5. A – Radix sp. (SNM 183/2006, PZ-520), Martin (ZGT-3); B – Popovicia cf. compressa (Pavlović, 1931) (SNM 161/2006, PZ-563),
Trebostovo (GT-11); C – Planorbarius nov. sp. (SNM 160/2006, PZ-562a), Horná Štubňa (GHŠ-1). Scale bars correspond to 10 mm.
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Remarks: The most typical characteristic of this species
is the non-depressed spire, which distinguishes it from all
other Neogene Planorbarius species, e.g. Planorbarius cornu
(Brongniart, 1810) from the Lower Miocene of France and
Germany (e.g. Harzhauser et al. 2014b); P. garsdorfensis
Schlickum & Strauch, 1979 from the Upper Pliocene of the
open-cast mine “Fortuna-Garsdorf” near Bergheim, Germany;
P. grandis (Halávats, 1903) [ = P. halavatsi Neubauer,
Harzhauser, Kroh, Georgopoulou & Mandic in Neubauer et
al., 2014a] from the Upper Pannonian of Balatonfőkajár,
Hungary; P. heriacensis (Fontannes, 1876) from the Upper
Miocene of Heyrieux, France; P. mantelli (Dunker, 1848)
from the upper Lower Miocene (Kirchberg Fm) of Gün-
zburg, Southern Germany (see, e.g. Harzhauser et al. 2014a);
P. thiollieri (Michaud, 1855) from the Lower Pliocene of
Hauterives, Southern France. This feature is certainly not an
artefact from preservation, as this specimen is not deformed
in any way. Still we refrain from introducing a new name
based on a few incomplete specimens.
“Planorbis pseudoammonius” documented by Andrian
(1866) is an Eocene species of France. The specimens stud-
ied by him are probably conspecific with Planorbarius sp.
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Distribution: So far only known from the Turiec Basin.
Discussion
Faunal composition
The freshwater gastropod fauna consists of at least 10 spe-
cies (Table 1). In many cases, the rather poor preservation of
the fossils prevents precise determination. Therefore, some
taxa could not be identified at the species level. Many fossils
from drill cores are strongly compressed, deformed or pre-
served as shelly impressions only. The best preserved speci-
mens derive from the Martin brickyard, including most of
the thick-shelled Viviparus and the small Theodoxus, Mela-
nopsis, and Tournouerina. Most of the species that have
been determined at the species level are unknown from other
European freshwater systems. This again confirms the high
degree of endemicity in Lake Turiec, as was already shown
for the ostracod fauna (Pipík et al. 2012).
The composition above genus level is quite diverse with
7 families present (Viviparidae, Neritidae, Melanopsidae,
Bithyniidae, Hydrobiidae, Lymnaeidae, and Planorbidae).
This rather high number, however, must not be overestimated,
since this diversity is never found in a single locality but is
the sum of all species recorded from Upper Miocene depos-
its of the entire lake. The varied composition is certainly
reflected in the paleoecological and/or stratigraphical differ-
ences throughout the basin. The ecological model estab-
lished by Pipík et al. (2012) based on the ostracod fauna
indicates the presence of quite diverse habitats in Lake Tu-
riec. Most of the molluscs derive from marsh/wetland habi-
tats or littoral to sublittoral areas in the north and are
preserved as accumulations in sublittoral sediments (e.g. in
Martin brickyard). More precise data, however, is not avail-
able, excluding reconstruction of the original habitats of the
single species.
In addition to the freshwater gastropods, several fragments
of terrestrial gastropods were found in the studied material, in-
cluding a few opercula of Pomatias and remnants of helicids.
None of these, however, allowed proper identification, in most
cases not even at the family level. Bivalves are present as well
and display a great systematic diversity similar to that of the
gastropods. They are represented by at least one slender, elon-
gate, triangular species of Mytilopsis? sp. (Dreissenidae),
two single valves of Pisidium sp. (Sphaeriidae), several im-
prints of two species of Lymnocardiinae, and several shells
and fragments of Unio cf. atavus Hörnes, 1865 (Unionidae)
(Fig. 6). The overall rather poor preservation of the material
makes more precise identifications difficult.
Stratigraphy
The earliest studies correlated the deposits with the Pan-
nonian (“Congerienschichten”) based on elements of the
mollusc fauna Štúr 1860; Andrian 1866; Vetters 1910;
Fig. 7). Vigh (1915) in turn suggested a “Pliocene to Levan-
tinian” age. Remeš (1923), in contrast, indicated an Early
Miocene age, based on the findings of the genus Oncophora
( = Rzehakia) which is restricted to the late Ottnangian (mid-
dle Burdigalian) (e.g. Čtyroký 1972). This implied a tempo-
ral shift of more than 7 Ma and naturally led to continuing
discussions among later authors (Andrusov 1938; Čechovič
1948, 1954). Since not a single follow-up study could con-
firm the record of Rzehakia, it was and is considered a misi-
dentification. Based on his determinations, Andrusov (1954)
supported the former opinion and suggested an Early Pan-
nonian age. More precise age constraints are provided from
K-Ar radiometric dating by Konečný et al. (1983). They give
an age of ca. 12.4—10.7 Ma (Late Sarmatian/Early Pannonian
or Late Serravallian/Early Tortonian) for the rhyolitic forma-
tion of the Central Slovakia Volcanic Field underlying the
Martin Formation, bounding the beginning of the Martin For-
mation and the main evolutionary episode of the endemic fauna
Species Martin
brickyard
Horná
Štubňa
(GHŠ-1)
Turčiansky
Peter
(GT-6)
Trebostovo
(GT-11)
Mošovce
(GT-14)
Košťany
nad
Turcom
(GT-13)
Martin
(ZGT-3)
Martin-
Záturčie
(BJ-2)
Theodoxus cf. postcrenulatus Papp, 1953
x
x
Viviparus pipiki Neubauer & Harzhauser nov. sp.
x
Popovicia cf. compressa (Pavlović, 1931)
x
Melanopsis glaubrechti Neubauer & Harzhauser
nov. sp.
x
Tournouerina turiecensis Neubauer & Harzhauser
nov. sp.
x
Bithynia sp.
x
Radix kovaci Neubauer & Harzhauser nov. sp.
x
x x
Radix sp.
x
Gyraulus sp.
x
Planorbarius nov. sp.
x
x
x
x
Lymnocardiinae gen. et. sp. indet. 1
x
Lymnocardiinae gen et. sp. indet. 2
x
Mytilopsis? sp.
x x
Pisidium sp.
x
Unio cf. atavus Hörnes, 1865
x
Table 1: Mollusc species present in the Turiec Basin. Counts are avoided here as the specimens derive from several non-quantitative col-
lections.
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of Lake Turiec. An age of 6.0 Ma (Late Pannonian, earli-
est Pontian or Late Messinian) is indicated by Konečný
et al. (1983) and Kováč et al. (2011) for the Abramová
Member, which is correlated to the top of the formation.
A similar age, documenting the upper boundary of the
formation and an approximate end of Lake Turiec, de-
rives from radiometric data from zircon and apatite fission
track thermochronology of the rhyolite tuffs and breccias
from the south margin of the basin (Králiková et al.
2014). Detailed lithostratigraphic divisions were provided
by Rakús et al. (2005) and Kováč et al. (2011).
The given age constraints are in good agreement with
the majority of the fauna of the Martin Formation, in-
cluding the species Theodoxus cf. postrenulatus, Vivi-
parus pipiki nov. sp., Melanopsis glaubrechti nov. sp.,
Tournouerina turiecensis nov. sp., Planorbarius nov. sp.,
Mytilopsis? sp., and Unio cf. atavus. In neighbouring
Fig. 7. Compiled stratigraphic chart based on the Geological Time Scale 2012 (Gradstein et al. 2012) with correlation of regional units and
biozones. Regional correlations follow Sacchi & Horváth (2002), Krstić (2003), Popov et al. (2006), Harzhauser & Mandic (2008), Krijgsman
et al. (2010), Vasiliev et al. (2011), Magyar & Geary (2012), Andreescu et al. (2013), Stoica et al. (2013), and ter Borgh et al. (2013). The
boundaries of the intervals used by Wenz (1923—1930) are adapted to those of the current stages. Ranges of former and present stratigraphic
classifications of the Martin Formation are given to the right.
Fig. 8. Map of sediment distributions of Late Miocene lakes
referred to in the discussion. Lake Pannon: extent for the early
late Pannonian (ca. 8 Ma), after Magyar et al. (1999). Lake
Metohia: extent for the Pontian, after Atanacković (1990),
Elezaj et al. (2010), and Neubauer et al. (2015). Lake Turiec:
after Pipík et al. (2012). Note that the lake outlines do not nec-
essarily correspond to the basin boundaries.
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Lake Pannon Theodoxus postcrenulatus is recorded for Pan-
nonian biozones E—F, corresponding to the upper Lymnocar-
dium conjungens Zone to Mytilopsis neumayri/zahalkai
Zone or to the Middle Pannonian (Papp 1953; Fordinál
1997; for a biostratigraphic correlation chart see Magyar et
al. 1999 and Harzhauser et al. 2004). Likewise, the first vivi-
parids occur in Lake Pannon during zone F (e.g. Strausz
1942; Papp 1953). Melanopsis sturii, probably a close rela-
tive or even ancestor of the here described M. glaubrechti, is
documented for the Pannonian F as well (Papp 1953). Unio
atavus is an Early-Middle Pannonian species (Harzhauser et
al. 2007). This pattern suggests a similar temporal range of
the deposits from Martin brickyard. The genus Tournouerina
is unknown so far from Miocene localities but is widespread
during the Pliocene (Schlickum 1978). In contrast, Popovi-
cia cf. compressa rather indicates a younger age. This spe-
cies was described from Upper Pontian deposits of the
Metohia Basin (Pavlović 1931; Popović 1969), which can be
roughly correlated with the latest Pannonian, and so earliest
Pliocene (Elezaj et al. 2010). Since the fauna of the Metohia
Basin shows a highly endemic development (e.g. Pavlović
1931, 1932; Milošević 1962; Popović 1964, 1970; Atanac-
ković & Stevanović 1990), a reliable biostratigraphical corre-
lation is not feasible. Absolute datings are also not available
for the Metohia Basin, lowering the biostratigraphic value of
its fauna. At present, this discrepancy remains unsolved.
Based on these considerations, the mollusc-bearing layers
of the Martin Formation can be roughly correlated with the
latest Middle or early Late Pannonian, corresponding to the
Middle and Late Tortonian of the International Timescale.
Paleobiogeography
One of the most important results of this taxonomic work is
the revision of species and genus names erroneously stated for
the Turiec Basin. Names like Ancylus, Hydrobia, Kosovia,
Melanoptychia, Lithoglyphus, Lymnaea, and Pyrgula greatly
biased the picture of factual biodiversity, paleobiogeography,
and paleoecology. Most of the available determinations and
names in the literature represent misidentifications, partly
even on the genus level. “Hydrobia” and “Pyrgula” as well as
“Lithoglyphus nannus” mentioned by Krstić et al. (2012) most
likely reflect the here described Tournouerina turiecensis nov.
sp.; “Lymnaea” corresponds to one of the described Radix
species; “Ancylus” turned out to be sedimentary infills of the
inflated apertures of Radix kovaci nov. sp.; “Planorbis pseudo-
ammonius” most probably reflects Planorbarius sp.; the al-
leged occurrence of the Early Pannonian endemic Papyrotheca
was based on a misidentified fragment of a dreissenid bivalve.
Certainly, the most interesting fact is the record of Popovi-
cia cf. compressa. This species belongs to an evolutionary
lineage seemingly endemic to the Metohia Basin in Kosovo
(Fig. 8). Probably originating from the Middle-Late Miocene
Kosovia lineage, the planorbiform P. compressa evolved
during the Late Pontian (earliest Pliocene), followed by the
planorbiform to low trochiform P. levantica in the Early Da-
cian, and terminating with the high trochiform P. turricu-
loidea in the Late Dacian (middle Early Pliocene) (Popović
1969; Elezaj et al. 2010). It remains unclear how a member
of this lineage could enter the Turiec Basin. Direct dispersal
is impossible, since neither the Lake Turiec nor the Lake
Metohia had any hydrological connections to the interjacent
Lake Pannon, where this genus is absent. One possible ex-
planation is transport via birds, which seems to account for
several present and past distribution patterns of freshwater
gastropods (Wesselingh et al. 1999; Figuerola & Green
2002; van Leeuwen et al. 2012).
Especially in this light it is notable that apart from the
somewhat doubtful record of Theodoxus postcrenulatus
none of the species was found in the nearby, coeval Lake
Pannon. In contrast to the situation for Lake Turiec, the fauna
of Lake Pannon, whose shore line was some 160 km to the
southeast during the Late Pannonian (Magyar et al. 1999;
Fig. 8), is particularly well known. Presently a statement on
such discrepancies and paleobiogeographical relationships in
general would be premature, since our knowledge about the
Turiec mollusc fauna is still incomplete. The collection and
evaluation of more and better preserved fossils would cer-
tainly allow a more detailed analysis of the paleobiogeo-
graphical picture as well as a reconstruction of the lake’s
paleoecological settings. Nevertheless, the present work con-
tributes to the still fragmentary puzzle of the actual biodiver-
sity of the Late Miocene Lake Turiec – and once more the
high degree of its endemicity has been proven.
Acknowledgments: Our thanks go to the following persons
for help: Andrej Bendík (Múzeum Andreja Kme a, Martin)
for providing access to the here studied material stored in the
paleontological collection of the museum in Martin; Anita
Eschner (NHM Vienna) for access to the malacological collec-
tion of the NHM Vienna; Alice Schumacher (NHM Vienna)
for making the majority of the macro-photographs; Oleg
Mandic (NHM Vienna) for help with translation of the Ser-
bian literature; Andreas Kroh (NHM Vienna) for discussion
of nomenclatural issues; Sonja Herzog-Gutsch and Andrea
Kourgli (NHM Vienna) for help with literature search. Finally,
we are grateful for the inputs by two anonymous reviewers,
who improved an earlier draft of the manuscript. This work
contributes to the FreshGEN Project financed by the Austrian
Science Fund (FWF Project P25365-B25: “Freshwater sys-
tems in the Neogene and Quaternary of Europe: Gastropod
biodiversity, provinciality, and faunal gradients”).
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