USNM711d, Skinner Ranch Fm., Glass Mts. (Permian of the United States)

Where: Texas (30.3° N, 103.3° W: paleocoordinates 0.8° S, 34.4° W)

• coordinate estimated from map

• small collection-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: limestone

• Skinner Ranch Formation is slope to basinal equivlant 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. 1977. Permian Brachiopods of West Texas, VI. Smithsonian Contributions to Paleobiology 32:3161-3370 [T. Olszewski/K. Tracy/M. Clapham]more details

PaleoDB collection 44509: authorized by Tom Olszewski, entered by Krisha Tracy on 13.09.2004, edited by Matthew Clapham

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Strophomenata
 Productida - Aulostegidae
Chonosteges variabilis, Limbella limbata
Chonosteges variabilis Cooper and Grant 1975
Limbella limbata Cooper and Grant 1975
 Productida - Paucispiniferidae
Oncosarina rotunda
Oncosarina rotunda Cooper and Grant 1975
 Productida - Productidae
Peniculauris sp.
Peniculauris sp. Muir-Wood and Cooper 1960
 Productida - Productellidae
Spyridiophora reticulata, Nudauris enigmatica
Nudauris enigmatica Cooper and Grant 1975
 Productida - Monticuliferidae
Compressoproductus concentricus
Compressoproductus concentricus Cooper and Grant 1975
 Productida - Cyclacanthariidae
Acritosia peculiaris
Acritosia peculiaris Cooper and Grant 1975
 Productida - Lyttoniidae
Eolyttonia sp., Eolyttonia gigantea, Coscinophora monilifera
Eolyttonia sp. Frederiks 1924
Eolyttonia gigantea Cooper and Grant 1974
Coscinophora monilifera Cooper and Grant 1974
 Orthotetida - Meekellidae
Geyerella hessi
Geyerella hessi Cooper and Grant 1974
Rhynchonellata
 Spiriferida - Trigonotretidae
Cartorhium zoyei
Cartorhium zoyei Cooper and Grant 1976
 Spiriferida - Martiniidae
Martinia sp.
Martinia sp. M'Coy 1844
 Athyridida - Athyrididae
Composita discina
Composita discina Cooper and Grant 1976
 Athyridida - Neoretziidae
Hustedia sp.
Hustedia sp. Hall and Clarke 1893
 Rhynchonellida - Stenoscismatidae
Stenoscisma pansum
Stenoscisma pansum Cooper and Grant 1976
 Rhynchonellida - Pontisiidae
Antronaria titania
Antronaria titania Cooper and Grant 1976
 Rhynchonellida - Allorhynchidae
Allorhynchus sp.
 Terebratulida - Dielasmatidae
Dielasma hessense
Dielasma hessense Cooper and Grant 1976
 Orthida - Enteletidae
Enteletes stehlii
Enteletes stehlii Cooper and Grant 1976
Cephalopoda
 Goniatitida - Marathonitidae
Kargalites sp.
Kargalites sp. Ruzhencev 1938 ammonite
Trilobita
 Proetida - Phillipsiidae
Ditomopyge cf. decurtata
Ditomopyge cf. decurtata Gheyselinck 1937 trilobite