USNM Loc. 42245 (Cretaceous of the United States)

Also known as MTC WY-10020

Where: Carbon County, Montana (45.2° N, 108.8° W: paleocoordinates 45.1° N, 57.8° W)

• coordinate based on unpublished field data

• small collection-level geographic resolution

When: Little Sheep Mudstone Member (Cloverly Formation), Aptian (125.0 - 113.0 Ma)

• low in Unit V

• bed-level stratigraphic resolution

Environment/lithology: lacustrine; claystone

Size classes: macrofossils, mesofossils

Collected by M. Carrano in 2010; reposited in the USNM

Collection methods: surface (float),

Primary reference: M. P. J. Oreska, M. T. Carrano, and K. M. Dzikiewicz. 2013. Vertebrate paleontology of the Cloverly Formation (Lower Cretaceous), I: faunal composition, biogeographic relationships, and sampling. Journal of Vertebrate Paleontology 33(2):264-292 [M. Carrano/M. Carrano/M. Carrano]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 137607: authorized by Matthew Carrano, entered by Matthew Carrano on 18.12.2012

Creative Commons license: CC BY (attribution)

Taxonomic list

Reptilia
 Avetheropoda - Dromaeosauridae
Deinonychus antirrhopus Ostrom 1969 coelurosaur
 Neornithischia -
Tenontosaurus tilletti Ostrom 1970 bird foot dinosaur
 Crocodylia -
Crocodylia indet. Owen 1842 crocodilian