Where: Oklahoma (34.7° N, 95.9° W: paleocoordinates 8.9° S, 33.7° W)

When: Johns Valley Formation, Early/Lower Pennsylvanian (323.2 - 315.2 Ma)

Environment/lithology: marine; shale

Size class: macrofossils

Reposited in the USNM

Primary reference: B. H. Harlton. 1933. Micropaleontology of the Pennsylvanian Johns Valley shale of the Ouachita Mountains, Oklahoma, and its relationship to the Mississippian Caney shale. Journal of Paleontology 7(1):3-29 [M. Clapham/P. Vazquez/P. Vazquez]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 132924: authorized by Matthew Clapham, entered by Priscilla Vazquez on 29.08.2012

Creative Commons license: CC BY (attribution)