USNM723s, Hill 5280, Glass Mountains (Permian to of the United States)

Where: Texas (30.3° N, 103.3° W: paleocoordinates 0.4° N, 33.8° W)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Skinner Ranch Formation, Artinskian to Artinskian (290.1 - 272.3 Ma)

• group of beds-level stratigraphic resolution

Environment/lithology: slope; lithified limestone

Size class: macrofossils

Preservation: replaced with silica

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 105847: authorized by Matthew Clapham, entered by Matthew Clapham on 26.02.2011

Creative Commons license: CC BY (attribution)

Taxonomic list

Strophomenata
 Orthotetida - Derbyiidae
Derbyia nasuta Girty 1908
 Productida - Cyclacanthariidae
Acritosia peculiaris Cooper and Grant 1975
 Productida - Aulostegidae
Limbella limbata Cooper and Grant 1975
Chonosteges limbatus Cooper and Grant 1975
Rhynchonellata
 Rhynchonellida - Stenoscismatidae
Stenoscisma hadrum Cooper and Grant 1976
 Rhynchonellida - Pontisiidae
Antronaria dissona Cooper and Grant 1976
Antronaria titania Cooper and Grant 1976
 Athyridida - Athyrididae
Composita apheles Cooper and Grant 1976
 Orthida - Enteletidae