Harvard Fossil Reserve (Lower Level) (Oligocene of the United States)

Where: Goshen County, Wyoming (42.0° N, 104.2° W: paleocoordinates 43.2° N, 96.2° W)

• coordinate based on political unit

When: lower Member (Brule Formation), Orellan (33.9 - 33.3 Ma)

Environment/lithology: terrestrial; lithology not reported

Size class: mesofossils

Primary reference: E. M. Schlaikjer. 1935. Contributions to the Stratigraphy and Palaeontology of the Goshen Hole Area, Wyoming. III. A New Basal Oligocene Formation. Bulletin of the Museum of Comparative Zoology 76(3):71-93 [J. Alroy/J. Alroy/J. Marcot]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 17116: authorized by John Alroy, entered by John Alroy on 30.04.1994

Creative Commons license: CC BY (attribution)

Taxonomic list

• NW 1/4 sec 32 T 24N R 61W
based on Prothero 1996c this may be in a reversed zone
S. occidentalis is an index fossil for the Orellan
 Perissodactyla - Rhinocerotidae
Subhyracodon occidentalis Leidy 1850 rhinoceros
 Perissodactyla - Equidae
Mesohippus bairdi Leidy 1850 anchitheriine horse