Labirinta Cave (Cretaceous of Bulgaria)

Also known as dinosaur sinkhole

Where: Pleven, Bulgaria (43.2° N, 24.0° E: paleocoordinates 30.2° N, 21.6° E)

• coordinate based on nearby landmark

• small collection-level geographic resolution

When: Kajlâka Formation, Late/Upper Maastrichtian (70.6 - 66.0 Ma)

• from upper part of formation

• bed-level stratigraphic resolution

Environment/lithology: marine; limestone

Size class: macrofossils

Primary reference: J. W. M. Jagt, N. Motchurova-Dekova, P. Ivanov, H. Capetta, and A. S. Schulp. 2006. Latest Cretaceous mosasaurs and lamniform sharks from Labirinta cave, Vratsa district (northwest Bulgaria): a preliminary note. Annales Geologiques de la Peninsule Balkanique 67:51-63 [P. Mannion/J. Tennant]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 105085: authorized by Matthew Carrano, entered by Matthew Carrano on 15.02.2011, edited by Jonathan Tennant

Creative Commons license: CC BY (attribution)

Taxonomic list

Cephalopoda
 Ammonitida - Pachydiscidae
Anapachydiscus cf. terminus Ward and Kennedy 1993 ammonite
 Ammonitida - Scaphitidae
Hoploscaphites constrictus Sowerby 1817 ammonite
Echinoidea
 Holasteroida - Holasteridae
Hemipneustes striatoradiatus Leske 1778 sea urchin
Chondrichthyes
 Lamniformes - Anacoracidae
Squalicorax pristodontus Agassiz 1835 crow shark
A single, incomplete lateral tooth, NMNHS 31362
 Lamniformes - Mitsukurinidae
Anomotodon sp. Arambourg 1952 goblin shark
A single, incomplete latero-anterior tooth, NMNHS 31363
Reptilia
 Squamata - Mosasauridae
Mosasauridae indet., "Mosasaurus cf. hoffmanni" = Mosasaurus hoffmannii1
Mosasauridae indet. Gervais 1852 mosasaur
"Mosasaurus cf. hoffmanni" = Mosasaurus hoffmannii1 Mantell 1829 mosasaur
Fragmentary lower jaw, NMNHS 11897
 Ornithischia -
Hadrosauroidea indet.1 ornithopod
NMNHS F-11899, 31437, 31438, 31441/31443, 31517, 31522-2, 31530
 Theropoda -
 Plesiosauria - Elasmosauridae
? Elasmosauridae indet. Cope 1869 elasmosaur