GEOLOGICA CARPATHICA, 50, 2, BRATISLAVA, APRIL 1999
CORRELATION OF THE UPPER TURONIAN FORAMINIFERAL
ASSEMBLAGE FROM THE ÚPOHLAVY AND BØEZNO SECTIONS
(BOHEMIAN CRETACEOUS BASIN) WITH SOME OTHER LOCALITIES
(SOUTH MORAVIA, GERMANY AND LOWER AUSTRIA)
Czech Geological Survey, Klárov 131/3, 118 21 Praha 1, Czech Republic
(Manuscript received January 21, 1998; accepted in revised form December 9, 1998)
Abstract: A correlation study was performed on the Upper Turonian foraminiferal assemblage from two localities in
NW Bohemia Úpohlavy and Bøezno and the localities including Dresden-Strehlen in Saxony, Turold in South Moravia
and type locality of Klement in Lower Austria. The Upper Turonian sediments (Teplice Formation) from the Úpohlavy
quarry and the Bøezno-Pd 1 borehole contained foraminiferal assemblage represented by abundant, well-preserved
tests of agglutinated and calcareous species. Three levels of change of benthic foraminiferal assemblage was recog-
nized in these sediments. The first change the disappearance of Cassidella tegulata (Reuss), Praebulimina crebra
temproková, Gaudryina compressa Akimec and Dorothia pupa (Reuss). At the second change Gaudryina carinata
Franke, Gaudryina laevigata Franke, Gavelinella berthelini (Keller) and Pyramidina kelleri (Vasilenko) appeared.
The third less significant level is characterized by the disappearance of P. kelleri and G. laevigata.
Key words: Bohemian Cretaceous Basin, Late Turonian correlation, Foraminifera.
were selected for correlation study of the Upper Turonian for-
aminiferal assemblage from the Teplice Formation.
The Upper Turonian sediments from Úpohlavy quarry be-
long to limestone-marl facies of the Jizera and Teplice Forma-
tion (Èech et al. 1980). The Teplice Formation from Bøezno
locality (borehole Pd-1) consists of dark grey calcareous clay-
stones, marlstones and limestones. The Klement Formation
from Turold quarry and Klement type locality comprises car-
bonate and also pelitic-psammitic sequences. The carbonate
sequence of the Turold quarry is characterized by strong re-
crystallization of calcareous microfossils (Stráník et al. 1996).
The Úpohlavy and Bøezno sections were studied during prep-
aration of a fieldguide for the Fifth International Cretaceous
Symposium in Freiberg. Micropaleontological study of the
Úpohlavy section was done for the first time. Foraminiferal
assemblage study of the Bøezno locality was done earlier by
Hercogová in Macák & Müller 1968 and temproková in
Pokorný et al. 1983. The revision of samples from Pd-1 bore-
hole (Bøezno) was performed for this paper.
A substantial part of the Úpohlavy and Bøezno sections are
formed by sediments of the Teplice Formation (Upper Turoni-
an) with relatively abundant assemblages of benthic and
planktonic foraminifers. Recently, 63 samples from Úpohlavy
quarry were taken and more than 80 species of foraminifers
Revision of foraminiferal taxonomy from 55 samples from
the borehole Pd-1 (Bøezno) was done in order to compare the
The studied localities (Úpohlavy and Bøezno-borehole Pd-1)
are situated in the NW part of the Bohemian Cretaceous Basin
which is a component of the Bohemian-Saxon Cretaceous Ba-
sin situated on the edge of the North European Platform. Ac-
cording Èech & Ulièný (1996) and Stráník et al. (1996), these
relatively shallow marine sediments of the Bohemian-Saxon
Cretaceous Basin can be correlated with the autochthonous sed-
iments covering the SE slope of the Bohemian Massif in South
Moravia and Lower Austria (Fig. 1).
Hence, Dresden-Strehlen locality in Saxony (Strehlener
Formation) and two localities (Turold and Klement) belonging
to the autochthonous Upper Cretaceous Klement Formation
Fig. 1. Location of the studied sections.
Fig. 2: The correlation of the Upper Turonian foraminiferal assemblages. 1 sandstone, 2 sand, 3 calcareous claystone, 4 marlstone, 5 marlstone > 60 % CaCO
, 6 slope loams,
7 limestone, 8 claystone, 9 limestone with silt and clay admixture, 10 limestone with glauconite admixture, 11 lenses of silicified and dolomitized limestone.
UPPER TURONIAN FORAMINIFERAL ASSEMBLAGE
Fig. 3. The correlation of the Upper Turonian foraminiferal assemblages. * in tectonic position; for legend see Fig. 2.
UPPER TURONIAN FORAMINIFERAL ASSEMBLAGE 149
Plate I: Figs. 1, 2. Praebulimina crebra temproková; Úpohlavy
1.60 m, 80
; Fig. 3. Praebulimina reussi (Morrow); Úpohlavy 2.80
; Fig. 4. Marssonella oxycona (Reuss); Úpohlavy 4.00
4.10 m, 90
; Fig. 5. Cassidella tegulata (Reuss); Úpohlavy 1.70 m,
; Fig. 6. Pyramidina kelleri (Vasilenko); Úpohlavy 6806.90 m,
; Fig. 7. Gaudryina laevigata Franke; Úpohlavy 3.80 m, 60
Fig. 8. Gaudryina laevigata Franke; Úpohlavy 2.50 m, 40
; Fig. 9.
Gaudryina carinata Franke; Úpohlavy 3.40 m, 60
; Fig. 10. Gaud-
ryina trochus (dOrbigny); Úpohlavy 4.004.10 m, 90
; Fig. 11. Tri-
taxia tricarinata (Reuss); Úpohlavy 7.00 m, 30
; Fig. 12. Tritaxia
macfadyeni Cushman; Úpohlavy 7.00 m, 80
; Fig. 13. Arenobulimi-
na dorbignyi; Úpohlavy 6.656.75 m, 60
; Fig. 14. Neoflabellina
sp.; Úpohlavy 5.205.30 m, 25
; Fig. 15. Gavelinella berthelini
(Keller); Úpohlavy 7.00 m, 90
; Fig. 16. Gavelinella moniliformis
(Reuss); Úpohlavy 7.85 m, 80
; Fig. 17. Whiteinella sp.; Úpohlavy
1.70 m, 100
; Fig. 18. Dicarinella imbricata (Mornod); Úpohlavy
8.808.90 m, 80
; Fig. 19. Hedbergella delrioensis (Carsey);
Úpohlavy 2.80 m, 70
; Fig. 20. Marginotruncana coronata Bolli;
Úpohlavy 6.656.75 m, 60
; Fig. 21. Helvetoglobotruncana helveti-
ca (Bolli); Úpohlavy 0.70 m, 70
; Fig. 22. Marginotruncana margi-
nata (Reuss); Úpohlavy 6.656.75 m, 70
. Photomicrographs by
Ananda Gabaová, Czech Geological Survey Prague.
63 samples from the Úpohlavy section were washed in the
Chemical Laboratory of the Czech Geological Survey. Fora-
minifers were isolated from the samples of approximately 0.5
0.7 kg of weight using the usual method of sieving through
0.063 mm sieves and silk. Foraminifers were studied using bin-
ocular light microscope. Photographs of foraminiferal species
were made using SEM photomicrograph.
More than 80 species of foraminifers were recognized from
63 samples taken from marlstones and limestones of the Jizera
and Teplice Formations in the Úpohlavy quarry. There are
three distinct levels of change of the foraminiferal as-
semblages (Fig. 2).
The first change is associated with disappearance of benthic
foraminifers Cassidella tegulata (Reuss), Praebulimina crebra
temproková, Gaudryina compressa Akimec and Dorothia
pupa (Reuss) at the base of the unit Xb.
Similar change was observed also in the depth about 50 m
in the Bøezno-borehole Pd-1 where moreover the lithological
change between marlstones and calcareous claystones is ap-
This level marks the base of the foraminiferal A1 as-
semblage Zone of Wejda (1993) using in Saxony.
This level represents the lower part of the Teplice Forma-
tion which is well correlated with Räcknitzer Formation in
Saxony. The autochthonous sediments of SE slope of the Bo-
hemian Massif are not correlated with this level because the
Klement Formation presents the upper to the uppermost part
of the Teplice Formation.
Below this level (in the unit Xa), highly diversified plank-
tonic foraminifers prevail, especially the genus Heterohelix.
Keeled planktonic foraminifers (Marginotruncana) indicate
relatively deeper-water conditions.
Above the base of the Zone A1 (Wejda 1993) in the unit
Xb, juvenile specimens of planktonic foraminifers prevail
(e.g. Hedbergella and Whiteinella), where among purely
benthic foraminifers only Tritaxia tricarinata (Reuss), Tritax-
ia macfadyeni Cushman and Marssonella oxycona (Reuss)
are common in the Úpohlavy and Bøezno (Pd-1) sections.
Near the Xb
boundary in the Úpohlavy section, an-
other change appears comprising an abundant, highly diver-
sified assemblage of foraminifers. The first appearance of
the species Gaudryina carinata Franke, Gaudryina laeviga-
ta Franke (also in Bøezno-Pd-1), Gavelinella berthelini
(Keller) and Pyramidina kelleri (Vasilenko) indicate the base
of the Zone A of Wejda (1993), with the appearance of G.
carinata, P. kelleri and Praebulimina intermedia temprok-
ová (Fig. 2). The last named has its first appearance above
boundary in the Úpohlavy section. Keeled
forms, such as Marginotruncana and Dicarinella dominate
within planktonic foraminifers. This second change level in
the Teplice Formation (Úpohlavy and Bøezno-Pd-1 bore-
hole) can be correlated with the Upper Turonian sediments
of the Klement Formation in South Moravia and Lower Aus-
tria (Fig. 3). In these autochthonous sediments the character
of the foraminiferal assemblage is slightly different due to
the Tethyan Realm. Some benthic species are missing and
the diversity of the planktonic species is higher than benthic
ones. But the presence of Gaudryina carinata, Gavelinella
berthelini give evidence for near relations to the Boreal bio-
province. The foraminiferal assemblage from the carbonate
sequence of the Turold quarry is characterized by strong re-
crystallization of the calcareous tests of Praebulimina, Gav-
elinella, Globigerinoides and Hedbergella (Stráník et al.
1996) and also by sandy and sandy clayey sediments of the
Klement Formation in the Klement type locality which con-
tained relatively poorly-preserved tests of the foraminifers.
From the benthic species, Marssonella oxycona (Reuss)
dominated. Planktonic species represented by genera
Whiteinella, Hedbergella, Marginotruncana and Dicarinella
are poorly preserved in the calcareous claystones of the Kle-
The third level of the foraminiferal changes was marked in
the uppermost part of the unit Xb
in the Úpohlavy section
(Figs. 2, 3). This, not very significant level is characterized
by appearance of P. kelleri and G. laevigata. This change of
foraminiferal assemblage is not clearly recorded in the Up-
per Cretaceous sediments of the Klement type locality
(Hradecká in Summesberger et al., in press) and Turold quar-
ry (Stráník et al. 1996).
Only general changes of planktonic foraminiferal assem-
blage was observed in the studied samples. No planktonic
species important for planktonic foraminiferal zonation
(Robaszynski & Caron 1995) was found, excepting Helveto-
globotruncana helvetica, a rare occurrence of which was ob-
served in the lower part of unit Xb
in the Úpohlavy section.
The study of the Upper Turonian sediments from the dif-
ferent localities enabled correlation of the foraminiferal as-
semblages. Sediments of the Teplice Formation from two lo-
calities (Úpohlavy, Bøezno-Pd-1) in the NW part of the
Bohemian Cretaceous Basin contain characteristic boreal
fauna. On the basis of the changes of foraminiferal assem-
blage, three levels are recognized within the Bohemian-
Saxonian Cretaceous Basin. The rich and highly diversified
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Teplice and Strehlen Formations were missing in the Klement
Formation (Fig. 3). The sequence of the Klement Formation un-
derlying this level could be correlated with the sequence above
the boundary Xb
in the Úpohlavy quarry and the Zone A
of Wejda (1993). In this sequence the characteristic benthic spe-
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