Highway 36 (Miocene to of the United States)

Also known as near Gay Hill

Where: Washington County, Texas (30.1° N, 96.1° W: paleocoordinates 30.7° N, 92.7° W)

• coordinate based on political unit

When: Hemingfordian to Hemingfordian (20.4 - 12.5 Ma)

• Although originally included in the Garvin Gully Fauna by Patton (1969b), there is some question about the exact stratigraphic level for this specimen. It may well belong in the Burkeville Fauna, as indicated by its large size.

Environment/lithology: terrestrial; lithology not reported

Size class: macrofossils

Primary reference: T. H. Patton and B. E. Taylor. 1971. The Synthetoceratinae (Mammalia, Tylopoda, Protoceratidae). Bulletin of the American Museum of Natural History 145(2):119-218 [J. Alroy/J. Alroy/B. Beatty]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 18636: authorized by John Alroy, entered by John Alroy on 15.05.2002

Creative Commons license: CC BY (attribution)

Taxonomic list

• stratigraphic level unclear
Mammalia
 Artiodactyla - Protoceratidae
Prosynthetoceras texanus Hay 1924 protoceratid