Leptolambda Quarry (Paleocene of the United States)

Also known as FMNH 620-39

Where: Mesa County, Colorado (39.2° N, 108.2° W: paleocoordinates 44.6° N, 90.9° W)

• coordinate based on political unit

• small collection-level geographic resolution

When: DeBeque Formation, Clarkforkian (56.8 - 55.8 Ma)

• said to be Clarkforkian

Environment/lithology: terrestrial

Reposited in the FMNH

Primary reference: A. J. Kihm. 1984. Early Eocene Mammalian Fauna of the Piceance Creek Basin. Northwestern Colorado. [J. Alroy/J. Alroy/M. Uhen]more details

PaleoDB collection 15254: authorized by John Alroy, entered by John Alroy on 27.09.1993

Creative Commons license: CC BY (attribution)

Taxonomic list

Mammalia
 Theriamorpha - Phenacodontidae
Ectocion osbornianus Cope 1882 condylarth
Phenacodus sp. Cope 1873 condylarth
Phenacodus cf. vortmani Cope 1880 condylarth
 Procreodi - Arctocyonidae
Lambertocyon ischyrus Gingerich 1978 condylarth
 Theriamorpha - Viverravidae
Didymictis cf. proteus Polly 1997 placental
 Acreodi - Mesonychidae
Dissacus navajovius Cope 1881 condylarth
 Cimolesta - Barylambdidae
Barylambda faberi Patterson 1933 pantodont
holotype of "Leptolambda schmidti"; see Patterson and Simons 1958