Big Red Horizon (TMM 40205) (Eocene of the United States)

Also known as Porvenir L.F. (in part)

Where: Presidio County, Texas (29.9° N, 104.2° W: paleocoordinates 31.6° N, 95.9° W)

• coordinate based on political unit

• small collection-level geographic resolution

When: Chambers Tuff Formation, Duchesnean (40.4 - 37.2 Ma)

Environment/lithology: terrestrial

Reposited in the TMM

Primary reference: P. O. McGrew. 1971. Epihippus from the Vieja Group, Trans-Pecos Texas. Pearce-Sellards Series 18 [J. Alroy/J. Alroy/J. Ju]more details

PaleoDB collection 16831: authorized by John Alroy, entered by John Alroy on 26.07.1994

Creative Commons license: CC BY (attribution)

Taxonomic list

• "5 to approximately 50 feet above the base of the Chambers Tuff" = Big Red Horizon: Wilson 1971a
Mammalia
 Perissodactyla - Equidae
Mesohippus texanus McGrew 1971 anchitheriine horse
 Artiodactyla - Agriochoeridae
Protoreodon pumilus Marsh 1875 agriochoerid