Where: Oklahoma (36.7° N, 96.7° W: paleocoordinates 2.1° S, 28.6° W)

• coordinate based on nearby landmark

When: Neva Member (Grenola Formation), Asselian (298.9 - 295.5 Ma)

• Mid-Asselian, Streptognathodus nevaensis

• bed-level stratigraphic resolution

Environment/lithology: lithified limestone

Size class: macrofossils

Primary reference: R. K. Pabian and H. L. Strimple. 1974. Crinoid Studies Part I. Some Pennsylvanian crinoids from Nebraska. Part II. Some Permian crinoids from Nebraska, Kansas, and Oklahoma. Bulletins of American Paleontology 64(281):247-337 [G. Webster/G. Webster]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 87285: authorized by Matthew Clapham, entered by Matthew Clapham on 13.03.2009

Creative Commons license: CC BY (attribution)