Where: Texas (31.8° N, 106.0° W: paleocoordinates 0.6° S, 36.9° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Hueco Formation, Sakmarian (293.5 - 290.1 Ma)

• Lower part of Hueco limestone (near base, above Powwow conglomerate member)

• group of beds-level stratigraphic resolution

Environment/lithology: shallow subtidal; lithified limestone

Size class: macrofossils

Preservation: replaced with silica

Primary reference: E. L. Yochelson. 1960. Permian Gastropoda of the southwestern United States. 3. Bellerophontacea and Patellacea. Bulletin of the American Museum of Natural History 119(4):208-293 [D. Bottjer/M. Clapham/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 121508: authorized by Matthew Clapham, entered by Matthew Clapham on 05.12.2011

Creative Commons license: CC BY (attribution)