Where: Texas (33.7° N, 99.1° W: paleocoordinates 0.2° N, 29.6° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Belle Plains Formation, Artinskian (290.1 - 279.3 Ma)

• Upper part of Belle Plains Formation (probably current Bead Mountain Formation, but could be Valera Shale Formation)

• group of beds-level stratigraphic resolution

Environment/lithology: marine; lithified lithology not reported

Size class: microfossils

Collection methods: chemical, acetic,

Primary reference: G. D. Johnson. 1981. Hybodontoidei (Chondrichthyes) from the Wichita-Albany Group (Early Permian) of Texas. Journal of Vertebrate Paleontology 1(1):1-41 [M. Clapham/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 117098: authorized by Matthew Clapham, entered by Matthew Clapham on 15.09.2011

Creative Commons license: CC BY (attribution)