Where: Texas (31.7° N, 100.0° W: paleocoordinates 0.8° N, 30.3° W)

• coordinate estimated from map

• small collection-level geographic resolution

When: Arroyo Formation, Kungurian (279.3 - 272.3 Ma)

• group of beds-level stratigraphic resolution

Environment/lithology: marginal marine; lithified siliciclastic sediments

Size class: macrofossils

Primary reference: N. D. Newell. 1938. Late Paleozoic pelecypods: Pectinacea. University of Kansas Publications, State Geological Survey of Kansas 10(1):1-123 [P. Wagner/P. Wagner/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 82275: authorized by Matthew Clapham, entered by Matthew Clapham on 25.07.2008

Creative Commons license: CC BY (attribution)