USNM712e, Franklin Mountains (Permian of the United States)

Where: Texas (31.9° N, 106.0° W: paleocoordinates 1.8° N, 35.5° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Hueco Formation, Artinskian (290.1 - 279.3 Ma)

• Basal upper Hueco

• group of beds-level stratigraphic resolution

Environment/lithology: shallow subtidal; lithified limestone

Size class: macrofossils

Preservation: replaced with silica

Reposited in the USNM

Collection methods: chemical,

Primary reference: G. A. Cooper and R. E. Grant. 1972. Permian brachiopods of west Texas, I. Smithsonian Contributions to Paleobiology 14:1-231 [D. Bottjer/M. Clapham/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 105588: authorized by Matthew Clapham, entered by Matthew Clapham on 22.02.2011

Creative Commons license: CC BY (attribution)

Taxonomic list

 Productida - Productidae
Kozlowskia sp. Fredericks 1933
 Athyridida - Neoretziidae
Hustedia sp. Hall and Clarke 1893
 Athyridida - Athyrididae
Composita cracens Cooper and Grant 1976
 Spiriferinida - Reticulariinidae
Reticulariina hueconiana Cooper and Grant 1976
 Rhynchonellida - Pontisiidae
Pontisia franklinensis Cooper and Grant 1976
 Rhynchonellida - Stenoscismatidae