Where: Coal County, Oklahoma (34.5° N, 96.5° W: paleocoordinates 9.6° S, 35.0° W)

• coordinate stated in text

• small collection-level geographic resolution

When: Barnett Hill Member (Atoka Formation), Bashkirian (323.2 - 315.2 Ma)

• the Barnett Hill was originally included in the Wapanucka Formation and thought to be Morrowan, but it may be in the basal Atoka Formation instead (Laudon 1958), so if it is Atokan at all it is earliest Atokan and therefore Bashkirian

• group of beds-level stratigraphic resolution

Environment/lithology: marine; lithology not reported

Size class: macrofossils

Collected by A. A. Graffham, H. L. Strimple; reposited in the SUI

• University of Oklahoma (UO) and University of Iowa (SUI) collections

Primary reference: H. L. Strimple. 1975. Middle Pennsylvanian (Atokan) crinoids from Oklahoma and Missouri. University of Kansas Paleontological Contributions, Paper 76:1-30 [G. Webster/G. Webster]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 90797: authorized by John Alroy, entered by John Alroy on 17.08.2009

Creative Commons license: CC BY (attribution)