Sage Creek Mountain (Bridger E) (Eocene of the United States)

Also known as MPM 2970

Where: Uinta County, Wyoming (41.1° N, 110.1° W: paleocoordinates 45.1° N, 96.4° W)

• coordinate stated in text

• outcrop-level geographic resolution

When: Cedar Mountain ("Bridger E") Member (Bridger Formation), Bridgerian (50.3 - 46.2 Ma)

• from a section spanning about 100 feet of altitude

• member-level stratigraphic resolution

Environment/lithology: terrestrial; red siltstone

• "prominently red-banded siltstones"

Size class: macrofossils

Collection methods: surface (float)

Primary reference: R. M. West and J. H. Hutchison. 1981. Milwaukee Public Museum Contributions in Biology and Geology 46 [J. Alroy/J. Alroy]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 16405: authorized by John Alroy, entered by John Alroy on 26.03.1995, edited by Patricia Holroyd

Creative Commons license: CC BY (attribution)

Taxonomic list

Reptilia
 Testudines - Trionychidae
Trionychidae indet.1 Gray 1825 softshell turtle
 Testudines - Adocidae
"Baptemys wyomingensis" = Adocus wyomingensis
"Baptemys wyomingensis" = Adocus wyomingensis Leidy 1869 turtle
 Testudines - Pangeoemydidae
Bridgeremys pusilla2 Hay 1908 turtle
"Echmatemys septaria" = Echmatemys stevensoniana Leidy 1870 turtle
 Crocodylia - Alligatoridae
Alligatorinae indet. Cuvier 1807 crocodilian
Mammalia
 Rodentia - Ischyromyidae
Paramys cf. delicatior Leidy 1871 rodent
 Perissodactyla - Brontotheriidae
Brontotheriidae indet. Marsh 1873 brontothere
 Theriiformes - Herpetotheriidae
"Herpetotherium marsupium" = Peratherium marsupium
"Herpetotherium marsupium" = Peratherium marsupium Troxell 1923 marsupial