Published April 13, 2021 | Version v1

Crocodylia Gmelin 1789

  • 1. Palaeontological Institute and Museum, University of Zurich, Karl Schmid-Strasse 4, 8006 Zurich (Switzerland) & Dipartimento di Scienze della Terra, Università di Torino, Via Valperga Caluso 35, 10125 Torino (Italy) & Department of Ecology, Laboratory of Evolutionary Biology, Faculty of Natural Sciences, Comenius University in Bratislava, Mlynská dolina, 84215 Bratislava (Slovakia) georgios. georgalis @ pim. uzh. ch (corresponding author)
  • 2. Department of Ecology, Laboratory of Evolutionary Biology, Faculty of Natural Sciences, Comenius University in Bratislava, Mlynská dolina, 84215 Bratislava (Slovakia)
  • 3. Department of Biology, Ege University, Bornova, 35100 Izmir (Turkey)

Description

Crocodylia indet.

(Fig. 5)

MATERIAL. — Turkey. Kavakdere: an osteoderm (EUNMH PV 14073). Kocayarma: 14 isolated teeth (EUNMH PV 14074– EUNMH PV 14087). Kargi 2: two teeth (EUNMH PV 14068 and EUNMH PV 14069).

DESCRIPTION

Osteoderm

The isolated osteoderm EUNMH PV 14073 is relatively large, with a maximum length of 12 mm (Fig. 5A, B). On its external surface, a prominent longitudinal ridge runs throughout large part of its midline. Large pits of irregular size punctuate its external surface, on both sides of the ridge. Small pits are also present on the internal surface of the specimen.

Teeth

All teeth are conical; some of them are relatively robust, while others are more slender (Fig. 5 C-J). Their crown varies in pointness, being either pointed or apically blunt. A prominent mesiodistal serration is present in some teeth. These mesiodistal serrations separate the lingual and slightly concave surface from the labial, slightly convex one. Distinct elongated wrinkles are present in most teeth.

COMMENTS

Crocodylian teeth cannot afford a more precise taxonomic assignment (Georgalis et al. 2016, 2019a). The same applies for the single isolated osteoderm. On the absence of any diagnostic cranial remains, we therefore have to consider all this material as indeterminate crocodylians. Note also that crocodylian teeth from Kargi 2 have recently been mentioned by Vasilyan et al. (2019), however, they have not been figured.

Notes

Published as part of Georgalis, Georgios L., Čerňanský, Andrej & Mayda, Serdar, 2021, Late Paleogene herpetofaunas from the crossroads between two continents - new amphibian and reptile remains from the Oligocene of southern Balkans and Anatolia, pp. 253-275 in Comptes Rendus Palevol 20 (15) on pages 259-260, DOI: 10.5852/cr-palevol2021v20a15, http://zenodo.org/record/20798662

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Linked records

Additional details

Biodiversity

Collection code
EUNMH
Scientific name authorship
Gmelin
Kingdom
Animalia
Phylum
Chordata
Taxon rank
order
Taxonomic concept label
Crocodylia Gmelin, 1789 sec. Georgalis, Čerňanský & Mayda, 2021

References

  • GEORGALIS G. L., VILLA A., VLACHOS E. & DELFINO M. 2016. - Fossil amphibians and reptiles from Plakias, Crete: a glimpse into the earliest late Miocene herpetofaunas of southeastern Europe. Geobios 49: 433-444. https://doi.org/10.1016/j.geobios.2016.09.004
  • VASILYAN D., ROcEK Z., AYVAZYAN A. & CLAESSENS L. 2019. - Fish, amphibian and reptilian faunas from latest Oligocene to middle Miocene localities from central Turkey. Palaeobiodiversity and Palaeoenvironments 99: 723-757. https://doi.org/10.1007/s12549-019-00405-3