Where: Washington County, Arkansas (36.0° N, 94.0° W: paleocoordinates 12.1° S, 35.5° W)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Goniatites granosus ammonoid zone, Lower Shale Member (Fayetteville Formation), Chesterian (335.5 - 323.2 Ma)

• Goniatites granosus zone

• group of beds-level stratigraphic resolution

Environment/lithology: marine; black, gray, silty shale

Size class: macrofossils

Collected by R.D. Mesler; reposited in the USNM

Primary reference: M., J.r. Gordon. 1969. Revision of some of Girty's invertebrate fossils from the Fayetteville Shale (Mississippian) of Arkansas and Oklahoma - Introduction. United States Geological Survey Professional Paper 606(A):1-7 [P. Wagner/P. Wagner/P. Wagner]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 76144: authorized by Pete Wagner, entered by Pete Wagner on 14.11.2007

Creative Commons license: CC BY (attribution)