USNM Loc. 42146 (Cretaceous of the United States)

Also known as MTC WY-05001

Where: Big Horn County, Wyoming (44.5° N, 107.9° W: paleocoordinates 44.3° N, 57.1° 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• coordinate based on unpublished field data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; gray mudstone

• "5Y 7/1, blocky mudstone"

Size class: mesofossils

Collected by M. Carrano in 2005; reposited in the USNM

Collection methods: bulk, surface (float), sieve,

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 137571: authorized by Matthew Carrano, entered by Matthew Carrano on 18.12.2012, edited by Philip Mannion

Creative Commons license: CC BY (attribution)

Taxonomic list

Osteichthyes
 Osteichthyes -
Osteichthyes indet. Huxley 1880 bony fish
Actinopteri
 Neopterygii -
Amiiformes indet. Hay 1929 bowfin
Reptilia
 Testudines -
 Ornithischia -
Ornithischia indet. Seeley 1888 ornithischian
 Loricata -
Mesoeucrocodylia indet. Whetstone and Whybrow 1983 crocodilian
Osteichthyes
 Amphibia -
Amphibia indet. Linnaeus 1758 tetrapod