International Geological Journal - Official Journal of the Carpathian-Balkan Geological Association

PIENINIA OBLONGA — SKELETAL PARTS OR ENDOPARASITES OF KERATOSA SPONGES ?

Pages: 401 - 407

Authors: MILAN MISIK

Abstract: The problematic bodies Pieninia oblonga Borza & Misik common in Barremian to Upper Eocene shallow-water sediments were considered as algae, rudist fragments, echinoderm remains, or sclerites of Gorgonaceae. They were recently found inside the skeleton of sponges, probably Keratosa. The growth stages of these bodies are described. The question remains whether they are unusual sclerites or parasites. The way of their loosening from the skeletons was not observed.

Keywords: Western Carpathians, Paleocene, biohermal limestones, Pieninia problematic bodies, Octocorallia, Keratosida, parasites

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