Dry Creek (Bridger C) (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: upper Member (Bridger Formation), Bridgerian (50.3 - 46.2 Ma)

Environment/lithology: terrestrial

Primary reference: L. Krishtalka. 1976. Early Tertiary Adapisoricidae and Erinaceidae (Mammalia, Insectivora) of North America. Bulletin of Carnegie Museum of Natural History 1 [J. Alroy/J. Alroy/J. Ju]more details

PaleoDB collection 16211: authorized by John Alroy, entered by John Alroy on 05.08.1996, edited by Roger Benson, Terri Cleary and Evangelos Vlachos

Creative Commons license: CC BY (attribution)

Taxonomic list

• see note above on geography
Reptilia
 Testudines - Trionychidae
Trionychidae indet.4 Gray 1825 softshell turtle
A specimen found l>y Dr. Carter at Dry Creek, and represented in Fig. 11, Plate XVI, is an outer fragment of a costal plate. It is not pitted as in Tronyx guttatus, but is crossed obliquely by coarse ridges with the intervals occupied by a lattice of narrower ridges. Probably the specimen may belong to a species of Anosteira
 Testudines - Baenidae
"Baena undata" = Chisternon undatum5
"Baena undata" = Chisternon undatum5 Leidy 1871 turtle
 Testudines - Pantrionychidae
Amyda salebrosa n. sp.3 Hay 1908 turtle
AMNH 3941 holotype carapace collected by Mr Walter Granger at Dry Creek, in southwestern Wyoming, June 30, 1904
 Testudines - Pantestudinidae
"Testudo corsoni" = Hadrianus corsoni4, "Hadrianus octonarius" = Hadrianus corsoni5
"Testudo corsoni" = Hadrianus corsoni4 Leidy 1871 turtle
Some of them had been previously collected by Drs. Corson and Carter, and others were found during our explorations of the buttes near Fort Bridger, and those of Dry Creek ten miles from the former.
"Hadrianus octonarius" = Hadrianus corsoni5 Leidy 1871 turtle
Partial right humerus
 Testudines - Panemydidae
"Emys wyomingensis" = Chrysemys wyomingensis5
"Emys wyomingensis" = Chrysemys wyomingensis5 Leidy 1869 pond turtle
 Squamata -
"Saniwa crassa" = Saniwa ensidens1
"Saniwa crassa" = Saniwa ensidens1 Leidy 1870 squamates
AMNH 6057, 12 dorsals, 18 caudals, mostly broken; fragments of pelvic bones; ends of femur and tibia; both calcanea
Mammalia
 Perissodactyla - Equidae
Orohippus sp.2 Marsh 1872 horse
"Dry Creek, Hor. C."; discussed under "O. ballardi" but not clearly assigned to that species
 Tribosphenida -
Talpavus nitidus Marsh 1872 placental
upper Bridger
 Ferae - Metacheiromyidae
Metacheiromys cf. marshi6 Wortman 1903 placental
"probably Bridger C"; stratigraphic provenance based on composition of fauna
 Macroscelidea - Amphilemuridae
Scenopagus curtidens Matthew 1909 elephant shrew
upper Bridger
Scenopagus edenensis McGrew et al. 1959 elephant shrew
upper Bridger
 Ungulata - Uintatheriidae
Uintatherium anceps7 Marsh 1871 uintathere
includes Leidy's type of "U. atrox" from "'near the camp in Dry Creek Canyon' (Bridger C)"