USNM721t, 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 estimated from map

• small collection-level geographic resolution

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

• group of beds-level stratigraphic resolution

Environment/lithology: lithified packstone

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 101781: authorized by Matthew Clapham, entered by Matthew Clapham on 03.01.2011

Creative Commons license: CC BY (attribution)

Taxonomic list

Polyplacophora
 Neoloricata - Lepidopleuridae
"Pterochiton arthurcooperi" = Schematochiton arthurcooperi5
"Pterochiton arthurcooperi" = Schematochiton arthurcooperi5 Smith 1976 chiton
Gastropoda
 Murchisoniina - Gosseletinidae
Apachella translirata1 Winters 1956 snail
Bivalvia
 Myalinida - Myalinidae
Myalina lamellosa3 McRoberts and Newell 2005 clam
 Pectinida - Pseudomonotidae
Prospondylus acinetus4 Newell and Boyd 1970 scallop
Strophomenata
 Orthotetida - Meekellidae
Meekella calathica2 Cooper and Grant 1974
 Orthotetida - Schuchertellidae
Tropidelasma corniculum2 Cooper and Grant 1974
Bothrostegium derbyoideum2 Cooper and Grant 1974
 Orthotetida - Derbyiidae
Derbyia sp.2 Waagen 1884
Derbyia cincinnata2 Cooper and Grant 1974
Derbyia laqueata2 Cooper and Grant 1974
Derbyia informis2 Cooper and Grant 1974
 Productida - Paucispiniferidae
Paucispinifera sulcata2 Cooper and Grant 1975
 Productida - Productellidae
Echinauris sp.2 Muir-Wood and Cooper 1960
 Productida - Linoproductidae
Megousia auriculata2 Muir-Wood and Cooper 1960
 Productida - Aulostegidae
Edriosteges compactus2 Cooper and Grant 1975
Rhamnaria tenuispinosa2 Cooper and Grant 1975
 Productida - Cooperinidae
Cooperina subcuneata2 Cooper and Grant 1975
 Productida - Hercosiidae
Hercosestria cribrosa2 Cooper and Grant 1969
 Productida - Cyclacanthariidae
Taphrosestria peculiaris2 Cooper and Grant 1975
Cyclacantharia paucispinosa2 Cooper and Grant 1975
 Productida - Lyttoniidae
Coscinophora magnifica n. sp.2 Cooper and Grant 1974
Rhynchonellata
 Rhynchonellida - Stenoscismatidae
Stenoscisma sp.2 Conrad 1839
Stenoscisma calvatum2 Cooper and Grant 1976
Stenoscisma bonum2 Cooper and Grant 1976
 Rhynchonellida - Pontisiidae
Anteridocus seminudus2 Cooper and Grant 1976
Pontisia stehlii2 Cooper and Grant 1969
ssp. stehlii
 Rhynchonellida - Wellerellidae
Cenorhynchia saginata2 Cooper and Grant 1976
 Orthida - Schizophoriidae
 Spiriferinida - Spiriferellinidae
Spiriferellina tricosa2 Cooper and Grant 1976
 Spiriferinida - Reticulariinidae
Reticulariina venustula2 Cooper and Grant 1976
 Spiriferida - Trigonotretidae
"Neospirifer thescelus" = Spiriferalaria thescelus2
"Neospirifer thescelus" = Spiriferalaria thescelus2 Cooper and Grant 1976
 Spiriferida - Elythidae
Neophricadothyris crassibecca2 Cooper and Grant 1976
 Athyridida - Neoretziidae
Hustedia sp.2 Hall and Clarke 1893
Hustedia consuta2 Cooper and Grant 1976
 Athyridida - Athyrididae
Composita crassa2 Cooper and Grant 1976
 Terebratulida - Notothyrididae
Chondronia ovalis2 Cooper and Grant 1976
 Terebratulida - Cryptonellidae
Texarina wordensis2 King 1931
Heterelasma glansfagea2 Cooper and Grant 1976