2.5 km east of Crescent (Permian of the United States)

Where: Logan County, Oklahoma (36.0° N, 97.6° W: paleocoordinates 3.5° N, 26.5° W)

• coordinate estimated from map

• small collection-level geographic resolution

When: Hennessey Group, Kungurian (279.3 - 272.3 Ma)

• Basal Fairmont Shale

Environment/lithology: terrestrial; siltstone

Size class: macrofossils

Collected by Olson

Collection methods: surface (in situ),

Primary reference: E. C. Olson. 1979. Seymouria grandis n. sp. (Batrachosauria: Amphibia) from the Middle Clear Fork (Permian) of Oklahoma and Texas. Journal of Paleontology 53(3):720-728 [R. Butler/E. Dunne]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 181087: authorized by Richard Butler, entered by Emma Dunne on 19.08.2016

Creative Commons license: CC BY (attribution)

Taxonomic list

Osteichthyes
 Seymouriamorpha - Seymouriidae
Seymouria grandis Olson 1979 tetrapod
UOSM 4-6-51 (catalogue number 15031); presacral vertebrae and atlas