USNM735c, Hess Canyon, Glass Mountains (Permian of the United States)

Where: Texas (30.4° N, 103.2° W: paleocoordinates 1.4° N, 33.2° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Willis Ranch Member (Word Formation), Roadian (272.3 - 268.8 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 102614: authorized by Matthew Clapham, entered by Matthew Clapham on 17.01.2011

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Trilobita
 Proetida - Phillipsiidae
Delaria brevis1
Delaria brevis1 Brezinski 1992 trilobite
Rhynchonellata
 Rhynchonellida - Wellerellidae
Wellerella girtyi2, Cenorhynchia fracida2
Wellerella girtyi2 Cooper and Grant 1976
ssp. girtyi
Cenorhynchia fracida2 Cooper and Grant 1976
 Rhynchonellida - Petasmatheridae
Petasmatherus opulus2
Petasmatherus opulus2 Cooper and Grant 1969
 Rhynchonellida - Rhynchoporidae
Rhynchopora palumbula2
Rhynchopora palumbula2 Cooper and Grant 1976
 Spiriferida - Spiriferellidae
Spiriferella gravis2
Spiriferella gravis2 Cooper and Grant 1976
 Spiriferida - Elythidae
"Neophricadothyris sp." = Phricodothyris2
"Neophricadothyris sp." = Phricodothyris2 George 1932
 Terebratulida - Dielasmatidae
Ectoposia grandis2, Dielasma sp.2, Dielasma zebratum2
Ectoposia grandis2 Cooper and Grant 1976
Dielasma sp.2 Beede and Rogers 1900
Dielasma zebratum2 Cooper and Grant 1976
 Terebratulida - Pseudodielasmatidae
Pseudodielasma sp.2
Pseudodielasma sp.2 Brill 1940
 Terebratulida - Notothyrididae
Glossothyropsis rectangulata2
Glossothyropsis rectangulata2 Cooper and Grant 1976
 Terebratulida - Cryptonellidae
Heterelasma concavum2
Heterelasma concavum2 Cooper and Grant 1976
 Spiriferinida - Spiriferellinidae
Spiriferellina hilli2
 Athyridida - Athyrididae
Composita enormis2
Composita enormis2 Cooper and Grant 1976
 Athyridida - Neoretziidae
Thedusia procera2, Hustedia pugilla2
Thedusia procera2 Cooper and Grant 1976
Hustedia pugilla2 Cooper and Grant 1976
ssp. pugilla
Strophomenata
 Orthotetida - Derbyiidae
Derbyia sp.2
Derbyia sp.2 Waagen 1884
 Strophomenida - Rugosochonetidae
Undulella undulata2, Dyoros (Tetragonetes) giganteus2, Dyoros (Lissosia) concavus2, Dyoros (Dyoros) extensus2
Undulella undulata2 Cooper and Grant 1969
Dyoros (Tetragonetes) giganteus2 Cooper and Grant 1975
Dyoros (Lissosia) concavus2 Cooper and Grant 1975
Dyoros (Dyoros) extensus2 Cooper and Grant 1975
 Productida - Cyclacanthariidae
Cyclacantharia kingorum2
Cyclacantharia kingorum2 Cooper and Grant 1969
 Productida - Lyttoniidae
Collemataria elongata2
Collemataria elongata2 Cooper and Grant 1974
 Productida - Paucispiniferidae
Paucispinifera auriculata2, Liosotella wordensis2
Paucispinifera auriculata2 Muir-Wood and Cooper 1960
 Productida - Linoproductidae
Grandaurispina kingorum2, Cancrinella subquadrata2
Grandaurispina kingorum2 Muir-Wood and Cooper 1960
Cancrinella subquadrata2 Cooper and Grant 1975
 Productida - Productellidae
Echinauris lateralis2
Echinauris lateralis2 Muir-Wood and Cooper 1960
 Productida - Productidae
Yakovlevia hessorum2
Yakovlevia hessorum2 Cooper and Grant 1975
 Productida - Strophalosiidae
Heteralosia hystricula2
 Productida - Aulostegidae
Cactosteges anomalus2, Rhamnaria kingorum2, Xenosteges quadratus2, Echinosteges tuberculatus2
Cactosteges anomalus2 Cooper and Grant 1975
Rhamnaria kingorum2 Muir-Wood and Cooper 1960
Xenosteges quadratus2 Cooper and Grant 1975
 Productida - Cooperinidae
Cooperina inexpectata2
Cooperina inexpectata2 Termier et al. 1966
Craniata
 Craniida - Craniidae
Lepidocrania sublamellosa2
Lepidocrania sublamellosa2 Cooper and Grant 1974
1Brezinski 1992; 2Cooper and Grant 1977