USNM721o, 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: Road Canyon Formation, Roadian (272.3 - 268.8 Ma)

• Lower

• group of beds-level stratigraphic resolution

Environment/lithology: slope; lithified limestone

Size class: macrofossils

Preservation: replaced with silica

Reposited in the USNM

Collection methods: 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 105805: authorized by Matthew Clapham, entered by Matthew Clapham on 25.02.2011

Creative Commons license: CC BY (attribution)

Taxonomic list

Bivalvia
 Pectinida - Annuliconchidae
Annuliconcha dentata2 Newell and Boyd 1995 scallop
Strophomenata
 Orthotetida - Meekellidae
Meekella calathica1 Cooper and Grant 1974
 Orthotetida - Derbyiidae
Derbyia cincinnata1 Cooper and Grant 1974
Derbyia informis1 Cooper and Grant 1974
 Strophomenida - Rugosochonetidae
Dyoros (Dyoros) extensiformis1 Cooper and Grant 1975
 Productida - Paucispiniferidae
Paucispinifera sulcata1 Cooper and Grant 1975
 Productida - Productidae
Peniculauris transversa1 Cooper and Grant 1975
 Productida - Productellidae
"Kutorginella robusta" = Retaria robusta1 Cooper and Grant 1975
Echinauris lappacea1 Cooper and Grant 1975
Echinauris bella1 Cooper and Grant 1975
 Productida - Linoproductidae
Holotricharina hirsuta1 Cooper and Grant 1975
 Productida - Aulostegidae
Xenosteges magnus1 Cooper and Grant 1975
Edriosteges multispinosus1 Muir-Wood and Cooper 1960
 Productida - Hercosiidae
Hercosestria cribrosa1 Cooper and Grant 1969
 Productida - Lyttoniidae
Eolyttonia chaotica1 Cooper and Grant 1974
Rhynchonellata
 Rhynchonellida - Stenoscismatidae
Stenoscisma bonum1 Cooper and Grant 1976
Stenoscisma triquetrum1 Cooper and Grant 1976
 Rhynchonellida - Pontisiidae
Pontisia stehlii1 Cooper and Grant 1969
ssp. stehlii (A) and tumidosa (VR)
 Rhynchonellida - Wellerellidae
Cenorhynchia atmeta1 Cooper and Grant 1976
Cenorhynchia mitigata1 Cooper and Grant 1976
 Rhynchonellida - Petasmatheridae
Elassonia micraria1 Cooper and Grant 1976
 Orthida - Schizophoriidae
 Spiriferida - Ambocoeliidae
"Crurithyris minutalis" = Cruricella minutalis1
"Crurithyris minutalis" = Cruricella minutalis1 Cooper and Grant 1976
 Spiriferida - Trigonotretidae
"Neospirifer thescelus" = Spiriferalaria thescelus1
"Neospirifer thescelus" = Spiriferalaria thescelus1 Cooper and Grant 1976
 Spiriferida - Elythidae
Neophricadothyris crassibecca1 Cooper and Grant 1976
"Neophricadothyris bullata" = Permophricodothyris bullata1 Cooper and Grant 1976
 Athyridida - Neoretziidae
Hustedia sp.1 Hall and Clarke 1893
Hustedia connorsi1 Cooper and Grant 1976
Hustedia narinosa1 Cooper and Grant 1976
 Athyridida - Athyrididae
Composita crassa1 Cooper and Grant 1976
 Terebratulida - Dielasmatidae
Dielasma sp.1 King 1856
Dielasma ellipsoideum1 Cooper and Grant 1976
 Terebratulida - Cryptonellidae
Texarina wordensis1 King 1931
Heterelasma glansfagea1 Cooper and Grant 1976
Craniata
 Craniida - Craniidae
Lepidocrania tardispinosa1 Cooper and Grant 1974
Petrocrania sp.1 Raymond 1910