Blue Croc Bed (Eocene of the United States)

Also known as UCM 79039; "Unit 13"

Where: Natrona County, Wyoming (43.2° N, 107.1° W: paleocoordinates 47.8° N, 90.2° W)

• coordinate based on political unit

When: Red Creek Facies Member (Wind River Formation), Lostcabinian (55.8 - 50.3 Ma)

• said to be Lostcabinian

• bed-level stratigraphic resolution

Environment/lithology: terrestrial

Primary reference: R. K. Stucky. 1984. Revision of the Wind River faunas, early Eocene of central Wyoming. Part 5. Geology and biostratigraphy of the upper part of the Wind River Formation, northeastern Wind River Basin. Annals of Carnegie Museum 53(9):231-294 [J. Alroy/J. Alroy/J. Alroy]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 15903: authorized by John Alroy, entered by John Alroy on 18.02.1993

Creative Commons license: CC BY (attribution)

Taxonomic list

• NISP 9
Mammalia
 Condylarthra - Hyopsodontidae
Hyopsodus paulus Leidy 1870 condylarth
 Perissodactyla -
? Heptodon posticus Cope 1882 odd-toed ungulate
Heptodon calciculus Cope 1880 odd-toed ungulate
 Perissodactyla - Brontotheriidae
Lambdotherium popoagicum Cope 1880 brontothere
 Perissodactyla - Palaeotheriidae
Hyracotherium vasacciense Cope 1872 odd-toed ungulate
 Cimolesta - Coryphodontidae
Coryphodon sp. Owen 1845 pantodont
 Dinocerata - Uintatheriidae
cf. Bathyopsis sp. Cope 1881 uintathere