USNM726h, Hess Ranch Horst, Glass Mountains (Permian of the United States)

Where: Texas (30.4° N, 103.2° W: paleocoordinates 1.1° N, 33.4° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Skinner Ranch Formation, Kungurian (279.3 - 272.3 Ma)

• group of beds-level stratigraphic resolution

Environment/lithology: 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 102608: authorized by Matthew Clapham, entered by Matthew Clapham on 17.01.2011

Creative Commons license: CC BY (attribution)

Taxonomic list

Strophomenata
 Productida - Scacchinellidae
Scacchinella titan2 Cooper and Grant 1975
 Productida - Paucispiniferidae
Elliottella varicostata2 Cooper and Grant 1975
 Productida - Productidae
Peniculauris "sp. 1"2 Muir-Wood and Cooper 1960
 Productida - Productellidae
Echinauris sp.2 Muir-Wood and Cooper 1960
Kozlowskia sp.2 Fredericks 1933
Nudauris enigmatica2 Cooper and Grant 1975
 Productida - Cyclacanthariidae
Acritosia peculiaris2 Cooper and Grant 1975
Rhynchonellata
 Spiriferida - Elythidae
"Neophricadothyris catatona" = Phricodothyris catatona2
"Neophricadothyris catatona" = Phricodothyris catatona2 Cooper and Grant 1976
 Athyridida - Athyrididae
Composita apheles2 Cooper and Grant 1976
 Rhynchonellida - Stenoscismatidae
Stenoscisma hadrum2 Cooper and Grant 1976
 Rhynchonellida - Wellerellidae
Cenorhynchia "sp. 1"2 Cooper and Grant 1976
Tricoria hirpex2 Cooper and Grant 1976
 Rhynchonellida - Pontisiidae
Antronaria emarginata2 Cooper and Grant 1976
Antronaria dissona2 Cooper and Grant 1976
 Orthida - Enteletidae
Enteletes sp.2 Waldheim 1825
Trilobita
 Proetida - Proetidae
Triproetus tumidus1 Brezinski 1992 trilobite