Gateway to the Paleobiology Database
Optima (Neogene of the United States)

Also known as Guymon; OMNH V52; UCMP V-2902

Where: Texas County, Oklahoma (36.7° N, 101.4° W: paleocoordinates 37.0° N, 99.7° W)

• coordinate based on political unit

When: Ogallala Formation, Hemphillian (10.3 - 4.9 Ma)

• Baskin 1981 says late Hemphillian

Environment/lithology: terrestrial; lithology not reported

Size class: macrofossils

Primary reference: C. J. Hesse. 1936. A Pliocene Vertebrate Fauna From Optima, Oklahoma. University of California Publications, Bulletin of the Department of Geological Sciences 24(3):57-70 [J. Alroy/J. Alroy/J. Marcot] more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 18304: authorized by John Alroy, entered by John Alroy on 05.08.1992, edited by Jonathan Marcot

Creative Commons license: CC BY (attribution)