USNM710r, Hill 5021, Glass Mountains (Permian of the United States)

Where: Brewster County, Texas (30.3° N, 103.3° W: paleocoordinates 1.4° S, 34.8° W)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Sullivan Peak Member (Skinner Ranch Formation), Artinskian (290.1 - 279.3 Ma)

• Leonardian (Hessian).

• group of beds-level stratigraphic resolution

Environment/lithology: slope; 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 43612: authorized by David Bottjer, entered by Matthew Clapham on 15.08.2004

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).
Strophomenata
 Orthotetida - Meekellidae
Geyerella hessi Cooper and Grant 1974
 Productida - Cyclacanthariidae
Acritosia peculiaris Cooper and Grant 1975
 Productida - Lyttoniidae
Eolyttonia gigantea Cooper and Grant 1974
 Productida - Productellidae
Nudauris enigmatica Cooper and Grant 1975
 Productida - Productidae
Kochiproductus elongatus Cooper and Grant 1975
 Productida - Monticuliferidae
"Cancrinella fragosa" = Costatumulus fragosa
"Cancrinella fragosa" = Costatumulus fragosa Cooper and Grant 1975
 Productida - Linoproductidae
Megousia sp. Muir-Wood and Cooper 1960
 Productida - Paucispiniferidae
Oncosarina spinicostata Cooper and Grant 1969
 Productida - Aulostegidae
Limbella limbata Cooper and Grant 1975
Glyptosteges intricatus Cooper and Grant 1975
Chonosteges variabilis Cooper and Grant 1975
Rhamnaria grandis Cooper and Grant 1975
Rhynchonellata
 Athyridida - Neoretziidae
 Athyridida - Athyrididae
Composita apheles Cooper and Grant 1976
 Spiriferida - Trigonotretidae
Cartorhium zoyei Cooper and Grant 1976
 Orthida - Enteletidae
Enteletes sp. Waldheim 1825
 Orthida - Schizophoriidae
"Acosarina dorsisulcata" = Acosarina minuta
"Acosarina dorsisulcata" = Acosarina minuta Abich 1878
 Terebratulida - Dielasmatidae
Dielasma hessense Cooper and Grant 1976
 Rhynchonellida - Stenoscismatidae
Stenoscisma hadrum Cooper and Grant 1976
Torynechus alectorius Cooper and Grant 1976
 Rhynchonellida - Pontisiidae
Antronaria voluminosa Cooper and Grant 1976
 Rhynchonellida - Wellerellidae
Tautosia podistra Cooper and Grant 1976
Cephalopoda
 Prolecanitida - Medlicottiidae
Bamyaniceras cf. knighti Miller and Furnish 1940 ammonite