Sourdough Creek 2 (Miocene to of the United States)

Also known as OMNH V1261

Where: Roger Mills County, Oklahoma (35.8° N, 99.6° W: paleocoordinates 36.1° N, 97.9° W)

• coordinate estimated from map

When: Ogallala Formation, Clarendonian to Clarendonian (12.5 - 2.6 Ma)

• "Many of the localities yielding vertebrate fossils in west-central Oklahoma occur along the outcrop margin of the Ogallala Formation, where there seems to be extensive reworking of the Ogallala sediments. This and the paucity of age-diagnostic taxa make it difficult to assign most of the Roger Mills County localities to a land mammal age."

Environment/lithology: terrestrial; gray, white, yellow lithology not reported

• "This locality is in a moderately large exposure of gray, whitish, and yellowish Ogallala beds... A dark gray-brown bed about half a meter thick near the top of the exposure looked promising for microvertebrates and a sample was screenwashed, but no microvertebrate fossils were recovered."

Size class: macrofossils

Primary reference: N. J. Czaplewski. 2008. Miocene Vertebrates From Ogallala Formation Sites in Western Oklahoma. In S. G. Lucas (ed.), Neogene Mammals (New Mexico Museum of Natural History and Science Bulletin) 44:1-14 [J. Marcot/J. Marcot]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 170193: authorized by Jonathan Marcot, entered by Jonathan Marcot on 16.06.2015

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Reptilia
 Testudines - Testudinidae
Hesperotestudo sp.
Hesperotestudo sp. Williams 1950 turtle
OMNH 71527 - 71528
Mammalia
 Perissodactyla - Equidae
Equidae indet.
Equidae indet. Gray 1821 horse
OMNH 71525
 Perissodactyla - Rhinocerotidae
Rhinocerotidae indet.
Rhinocerotidae indet. Gray 1821 rhinoceros
OMNH 71526