USNM723l, Hill 5021, Glass Mountains (Permian of the United States)

Where: Brewster County, Texas (30.3° N, 103.3° W: paleocoordinates 1.1° N, 33.5° W)

• coordinate estimated from map

• outcrop-level geographic resolution

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

• Top of Skinner Ranch Formation. Leonardian (Hessian).

• group of beds-level stratigraphic resolution

Environment/lithology: slope; lithified limestone

• Skinner Ranch Fm. is slope to basinal equivalent of platformal Hess Formation.

Size class: macrofossils

Preservation: replaced with silica

Reposited in the USNM

Collection methods: bulk, 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 75926: authorized by Wolfgang Kiessling, entered by Uta Merkel on 06.11.2007

Creative Commons license: CC BY (attribution)

Taxonomic list

• A variety of papers list the brachiopods, nearly all gastropods, most bivalves (except primarily Paleotaxodonts), trilobites, chitons, siliceous sponges, rugose corals (only from Gaptank and Asselian/Sakmarian formations).
Show authors, comments, and common names
Anthozoa
 Stauriida - Lophotichiidae
Lophotichium simulatum2, Assimulia (Ericina) recrea2, Assimulia (Assimulia) tergida2
Lophotichium simulatum2 Fedorowski 1987 horn coral
Assimulia (Ericina) recrea2 Fedorowski 1987 horn coral
Assimulia (Assimulia) tergida2 Ross and Ross 1962 horn coral
Rhynchonellata
 Spiriferinida - Reticulariinidae
Altiplecus "sp. 1"1
Altiplecus "sp. 1"1 Stehli 1954
 Orthida - Enteletidae
Enteletes sp.1, Enteletes rotundobesus1
Enteletes sp.1 Waldheim 1825
Enteletes rotundobesus1 Cooper and Grant 1976
 Orthida - Rhipidomellidae
Rhipidomella sp.1, Rhipidomella hessensis1
 Terebratulida - Dielasmatidae
Dielasma hessense1
Dielasma hessense1 Cooper and Grant 1976
 Spiriferida - Elythidae
"Neophricadothyris sp." = Phricodothyris1
"Neophricadothyris sp." = Phricodothyris1 George 1932
 Athyridida - Athyrididae
Composita apheles1
Composita apheles1 Cooper and Grant 1976
 Athyridida - Neoretziidae
Hustedia hessensis1
Hustedia hessensis1 King 1931
 Rhynchonellida - Pontisiidae
Antronaria dissona1, Antronaria voluminosa1
Antronaria dissona1 Cooper and Grant 1976
Antronaria voluminosa1 Cooper and Grant 1976
 Rhynchonellida - Stenoscismatidae
Stenoscisma hadrum1
Stenoscisma hadrum1 Cooper and Grant 1976
Strophomenata
 Orthotetida - Meekellidae
Meekella sp.1, Meekella hessensis1
Meekella hessensis1 King 1931
 Orthotetida - Schuchertellidae
Tropidelasma "sp. 3"1
Tropidelasma "sp. 3"1 Cooper and Grant 1969
 Productida - Cyclacanthariidae
Acritosia peculiaris1, Teguliferina compacta1
Acritosia peculiaris1 Cooper and Grant 1975
Teguliferina compacta1 Cooper and Grant 1975
 Productida - Monticuliferidae
Compressoproductus parvus1
Compressoproductus parvus1 Cooper and Grant 1975
 Productida - Productellidae
Spyridiophora reticulata1, Nudauris enigmatica1
Nudauris enigmatica1 Cooper and Grant 1975
 Productida - Paucispiniferidae
Oncosarina spinicostata1
Oncosarina spinicostata1 Cooper and Grant 1969
 Productida - Aulostegidae
Chonosteges variabilis1, Glyptosteges intricatus1, Limbella limbata1
Chonosteges variabilis1 Cooper and Grant 1975
Glyptosteges intricatus1 Cooper and Grant 1975
Limbella limbata1 Cooper and Grant 1975
1Cooper and Grant 1977; 2Fedorowski 1987