USNM702c, Old Word Ranch, Glass Mountains (Permian of the United States)

Where: Brewster County, Texas (30.4° N, 103.2° W: paleocoordinates 1.1° N, 33.3° W)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Road Canyon Formation, Kungurian (279.3 - 272.3 Ma)

• Represents bioherms usually occurring at base of Road Canyon Formation. Lower part of Road Canyon Formation contains conodont Mesogondolella idahoensis lamberti, indicating Kungurian age according to Henderson & Mei (2003).

• group of beds-level stratigraphic resolution

Environment/lithology: slope or ramp reef; limestone

• Road Canyon Formation records largely slope and basinal deposition.

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 43495: authorized by David Bottjer, entered by Matthew Clapham on 14.08.2004, edited by Wolfgang Kiessling

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).
Demospongiae
 Agelasida - Catenispongiidae
Catenispongia agaricus5 Finks 1995 demosponge
 Agelasida - Guadalupiidae
Guadalupia ramescens6 Finks 2010 demosponge
Cephalopoda
 Ceratitida - Paraceltitidae
? Paraceltites sp.4 Gemmellaro 1887 ceratite
 Goniatitida - Vidrioceratidae
Glassoceras normani4 Miller and Furnish 1957 ammonite
 Goniatitida - Perrinitidae
Perrinites sp.4 Böse 1919 ammonite
Gastropoda
 Trochoidea - Liotiidae
Dichostasia complex n. sp.12 Yochelson 1956 snail
Brochidium morrisi12 Yochelson 1956 snail
 Murchisoniina - Eotomariidae
"Euconospira pulchra n. sp." = Spiroscala quasipulchra1
"Euconospira pulchra n. sp." = Spiroscala quasipulchra1 Karapunar and Nützel 2022 snail
 Murchisoniina - Gosseletinidae
Shwedagonia elegans1 Batten 1956 snail
Ananias permianus2 Batten 1989 snail
Apachella nodosa2 Batten 1989 snail
 Murchisoniina - Phymatopleuridae
Worthenia corrugata2 Chronic 1952 snail
Discotomaria basisulcata1 Batten 1956 snail
 Euomphalina - Anomphalidae
Anomphalus studiosus12 Yochelson 1956 snail
 Neritoina - Neritopsidae
Byzantia obliqua n. gen.7 Kosnik 1997 snail
Bivalvia
 Myalinida - Myalinidae
Elversella rugosa n. gen.8 McRoberts and Newell 2001 clam
 Pectinida - Pseudomonotidae
Prospondylus acinetus9 Newell and Boyd 1970 scallop
 Pectinida - Deltopectinidae
Cyrtorostra varicostata11 Branson 1930 scallop
 Pectinida - Aviculopectinidae
"Aviculopecten americanus" = Newellipectinia americanus11, Obliquipecten granti11
"Aviculopecten americanus" = Newellipectinia americanus11 Newell and Boyd 1995 scallop
Obliquipecten granti11 Newell and Boyd 1995 scallop
 Pectinida - Annuliconchidae
Annuliconcha dentata11 Newell and Boyd 1995 scallop
 Pectinida - Heteropectinidae
Girtypecten sublaqueatus11 Girty 1908 scallop
Heteropecten vanvleeti11 Beede 1902 scallop
 Pectinida - Limipectinidae
Acanthopecten coloradoensis11 Newberry 1861 scallop
 Pectinida - Streblochondriidae
Eocamptonectes papillatus11 Girty 1908 scallop
Streblopteria montpelierensis11 Girty 1910 scallop
 Trigoniida - Schizodidae
Heteroschizodus macomoides10 Newell and Boyd 1975 clam
Craniata
 Craniida - Craniidae
Acanthocrania densispina n. sp.4 Cooper and Grant 1974
Lepidocrania tardispinosa4 Cooper and Grant 1974
Strophomenata
 Orthotetida - Meekellidae
Meekella calathica4 Cooper and Grant 1974
 Orthotetida - Derbyiidae
Derbyia laqueata4 Cooper and Grant 1974
Derbyia cincinnata4 Cooper and Grant 1974
Derbyia informis4 Cooper and Grant 1974
 Productida - Cooperinidae
Cooperina parva4 Cooper and Grant 1975
Cooperina subcuneata4 Cooper and Grant 1975
 Productida - Aulostegidae
Edriosteges multispinosus4 Muir-Wood and Cooper 1960
Rhamnaria sp.4 Muir-Wood and Cooper 1960
Rhamnaria vinnula4 Cooper and Grant 1975
Rhamnaria tenuispinosa4 Cooper and Grant 1975
Chonosteges costellatus4 Cooper and Grant 1975
 Productida - Tschernyschewiidae
 Productida - Hercosiidae
Hercosestria cribrosa4 Cooper and Grant 1969
"Superabundant"
 Productida - Cyclacanthariidae
Cyclacantharia paucispinosa4 Cooper and Grant 1975
? Acritosia vestibula4 Cooper and Grant 1975
 Productida - Lyttoniidae
Eolyttonia chaotica4 Cooper and Grant 1974
Collemataria gregaria4 Cooper and Grant 1974
 Productida - Productellidae
Echinauris bella4 Cooper and Grant 1975
Echinauris irregularis4 Cooper and Grant 1975
Echinauris crassa4 Cooper and Grant 1975
Rugatia convexa4 Cooper and Grant 1975
Spinarella paulula4 Cooper and Grant 1975
Spinarella perfecta4 Cooper and Grant 1975
"Kutorginella sullivanensis" = Retaria sullivanensis4 King 1931
"Kutorginella umbonata" = Retaria umbonata4 Muir-Wood and Cooper 1960
 Productida - Productidae
Peniculauris peniculifera4 Cooper and Grant 1975
Peniculauris transversa4 Cooper and Grant 1975
 Productida - Echinoconchidae
Waagenoconcha platys4 Cooper and Grant 1975
Waagenoconcha convexa4 Cooper and Grant 1975
 Productida - Linoproductidae
Holotricharina hirsuta4 Cooper and Grant 1975
Megousia auriculata4 Muir-Wood and Cooper 1960
 Productida - Paucispiniferidae
Paucispinifera sulcata4 Cooper and Grant 1975
 Strophomenida - Rugosochonetidae
Dyoros (Dyoros) extensiformis4 Cooper and Grant 1975
Dyoros (Tetragonetes) rectangulatus4 Cooper and Grant 1975
Rhynchonellata
 Orthida - Schizophoriidae
Acosarina mesoplatys4 King 1931
"Superabundant"
 Athyridida - Athyrididae
Composita stalagmium4 Cooper and Grant 1976
 Athyridida - Neoretziidae
Hustedia connorsi4 Cooper and Grant 1976
"Superabundant"
Hustedia ampullacea4 Cooper and Grant 1976
Hustedia narinosa4 Cooper and Grant 1976
 Terebratulida - Dielasmatidae
Dielasma sp.4 King 1856
Dielasma ellipsoideum4 Cooper and Grant 1976
 Terebratulida - Notothyrididae
Chondronia ovalis4 Cooper and Grant 1976
 Terebratulida - Cryptonellidae
Texarina wordensis4 King 1931
Heterelasma glansfagea4 Cooper and Grant 1976
 Spiriferida - Elythidae
"Neophricadothyris bullata" = Permophricodothyris bullata4
"Neophricadothyris bullata" = Permophricodothyris bullata4 Cooper and Grant 1976
 Spiriferida - Ambocoeliidae
"Crurithyris minutalis" = Cruricella minutalis4
"Crurithyris minutalis" = Cruricella minutalis4 Cooper and Grant 1976
 Spiriferida - Trigonotretidae
"Neospirifer thescelus" = Spiriferalaria thescelus4
"Neospirifer thescelus" = Spiriferalaria thescelus4 Cooper and Grant 1976
 Rhynchonellida - Stenoscismatidae
Stenoscisma sp.4 Conrad 1839
Stenoscisma camurum4 Cooper and Grant 1976
Stenoscisma triquetrum4 Cooper and Grant 1976
Stenoscisma calvatum4 Cooper and Grant 1976
Stenoscisma aptatum4 Cooper and Grant 1976
 Rhynchonellida - Pontisiidae
Pontisia stehlii4 Cooper and Grant 1969
Includes ssp. stehlii (A), ssp. tumidosa (C)
Anteridocus erugatus4 Cooper and Grant 1976
 Rhynchonellida - Wellerellidae
Cenorhynchia saginata4 Cooper and Grant 1976
Cenorhynchia atmeta4 Cooper and Grant 1976
Cenorhynchia parvula4 Cooper and Grant 1976
Cenorhynchia mitigata4 Cooper and Grant 1976
 Rhynchonellida - Petasmatheridae
Petasmatherus nitidus4 Cooper and Grant 1976
Elassonia micraria4 Cooper and Grant 1976
 Rhynchonellida - Rhynchoporidae
Rhynchopora sphenoides4 Cooper and Grant 1976
Rhynchopora hebetata4 Cooper and Grant 1976
 Spiriferinida - Spiriferellinidae
Spiriferellina tricosa4 Cooper and Grant 1976
Metriolepis sp.4 Cooper and Grant 1976
 Spiriferinida - Reticulariinidae
Reticulariina craticula4 Cooper and Grant 1976
Reticulariina venustula4 Cooper and Grant 1976
Trilobita
 Proetida - Phillipsiidae
Delaria brevis3 Brezinski 1992 trilobite
Delaria antiqua3 Girty 1908 trilobite