Dry Creek (Lower Bridger) (Eocene of the United States)

Where: Uinta County, Wyoming (41.2° N, 110.5° W: paleocoordinates 45.2° N, 96.8° W)

• coordinate based on political unit

When: lower Member (Bridger Formation), Bridgerian (50.3 - 46.2 Ma)

Environment/lithology: terrestrial; lithology not reported

Size classes: macrofossils, mesofossils

Collected by Lamothe, Chew

Primary reference: J. L. Wortman. 1901. Studies of Eocene Mammalia in the Marsh Collection, Peabody Museum. The American Journal of Science, series 4 12:143-154 [M. Carrano/M. Carrano]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 16210: authorized by John Alroy, entered by John Alroy on 26.03.1995, edited by Mark Uhen and Terri Cleary

Creative Commons license: CC BY (attribution)

Taxonomic list

• may equal either Little Dry Creek or Big Dry Creek in Sweetwater Co., or Little Dry Creek in Uinta Co.; based on reference of Gingerich 1979a I believe it is in Uinta Co.
"Pauromys perditus" type of Troxell 1923a is probably but not certainly from the lower Bridger

"Limnocyon verus" Thorpe 1923a: level not stated

"Viverravus gracilis" Thorpe 1923a: level not stated
"Hyrachyus eximius" Wood 1934: "Dry Creek (hence C or D)"; "H. princeps" from same; if these are in Sweetwater Co. they may be from the lower Bridger instead
Siren dunni Goin and Auffenberg 1957: Lamothe and Chew specimen in the YPM from "Dry Creek, Bridger Basin, Sweetwater County"
Aves
 Falconiformes - Falconidae
Falco falconella n. sp.5 Shufeldt 1915 falcon
Reptilia
 Squamata -
Saniwa ensidens2 Leidy 1870 squamates
AMNH 6056, numerous fragm. caudal and dorsal vertebrae and a calcaneum
Mammalia
 Primates - Omomyidae
Anaptomorphus aemulus4 Cope 1872 tarsier
"presumably" Bridger B
Washakius insignis1 Leidy 1873 tarsier
Bridger B
 Primates - Notharctidae
Notharctus tenebrosus3 Leidy 1870 primate
includes types of "Limnotherium tyrannus" and "Hipposyus formosus" from Bridger B of "Dry Creek, Grizzly Buttes"
 Ferae - Viverravidae
Viverravus minutus n. sp. Wortman 1901 placental
lower Bridger
 Ungulata - Homacodontidae
Antiacodon pygmaeus7 Cope 1872 even-toed ungulate
Bridger B
 Hyaenodonta - Hyaenodontidae
Sinopa rapax6 Leidy 1871 eutherian