Elk Creek (350 m) (Eocene of the United States)

Also known as Y-131 (348 m), USGS D-1287 (346 m), D-1335 (346 m)

Where: Washakie County, Wyoming (44.0° N, 108.0° W: paleocoordinates 48.7° N, 90.9° W)

• coordinate based on political unit

• small collection-level geographic resolution

When: Willwood Formation, Wasatchian (55.8 - 50.3 Ma)

Environment/lithology: terrestrial

Reposited in the USGS

Primary reference: T. M. Bown and K. D. Rose. 1987. Patterns of Dental Evolution in Early Eocene Anaptomorphine Primates (Omomyidae) from the Bighorn Basin, Wyoming. Paleontological Society Memoir 23:1-162 [J. Alroy/J. Alroy/J. Ju]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 15530: authorized by John Alroy, entered by John Alroy on 18.10.1995, edited by Patricia Holroyd

Creative Commons license: CC BY (attribution)

Taxonomic list

• all three localities are from the southern field area south of the county line
Show authors, comments, and common names
Reptilia
 Testudines - Kinosternoidea
Cardichelyon rogerwoodi1
Cardichelyon rogerwoodi1 Hutchison 2013 mud turtle
Mammalia
 Acreodi - Mesonychidae
Pachyaena gigantea2
Pachyaena gigantea2 Osborn and Wortman 1892 condylarth
YPM 131, "344-348-m level"
 Primates - Omomyidae
Tetonius sp., Pseudotetonius ambiguus
Tetonius sp. Matthew 1915 tarsier
T. matthewi-ambiguus intergrade; Y-131
Pseudotetonius ambiguus Matthew 1915 tarsier
USGS D-1287, 1335, Y-131
1Hutchison 2013; 2O'Leary and Rose 1995