USNM Loc. 42350 (Cretaceous to of the United States)

Also known as MTC WY-06002

Where: Big Horn County, Wyoming (45.0° N, 108.3° W: paleocoordinates 44.5° N, 60.1° W)

• coordinate based on unpublished field data

• small collection-level geographic resolution

When: Little Sheep Mudstone Member (Cloverly Formation), Aptian to Aptian (125.0 - 100.5 Ma)

• high in Unit V

• bed-level stratigraphic resolution

Environment/lithology: pond; yellow, silty, carbonaceous claystone

• "5Y 6/4, silty claystone with plant hash"

Size classes: macrofossils, mesofossils

Collected by M. Carrano in 2006; reposited in the USNM

Collection methods: quarrying, surface (float), surface (in situ), mechanical,

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 137592: authorized by Matthew Carrano, entered by Matthew Carrano on 18.12.2012

Creative Commons license: CC BY (attribution)

Taxonomic list

 Ornithischia -
Ankylosauria indet. Osborn 1923 ornithischian
Plantae indet. Haeckel 1866