PBDB Collection

USNM741a, Old Word Ranch, Glass Mountains (Permian of the United States)

Where: Texas (30.4° N, 103.1° W: paleocoordinates 1.1° N, 33.3° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

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

• Block from biohermal beds at base of Road Canyon

• group of beds-level stratigraphic resolution

Environment/lithology: slope or ramp reef; lithified limestone

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 106286: authorized by Matthew Clapham, entered by Matthew Clapham on 06.03.2011

Creative Commons license: CC BY (attribution)

Taxonomic list

• Bryozoan abundances recorded as abundant (a), common (c), uncommon (u), or rare (r) using categories centered approximately on 100, 15, 5, and 2 colonies per collection. Capital letters indicate species functioning as frame builder.

Show authors, comments, and common names

Rhynchonellata
Terebratulida - Notothyrididae	Chondronia ovalis¹ Chondronia ovalis¹ Cooper and Grant 1976
Spiriferida - Elythidae	"Neophricadothyris bullata" = Permophricodothyris bullata¹ "Neophricadothyris bullata" = Permophricodothyris bullata¹ Cooper and Grant 1976
Spiriferida - Trigonotretidae	Neospirifer bakeri¹ Neospirifer bakeri¹ King 1931 ssp. columbarius
Orthida - Schizophoriidae	Acosarina mesoplatys¹ Acosarina mesoplatys¹ King 1931
Athyridida - Athyrididae	Composita crassa¹ Composita crassa¹ Cooper and Grant 1976
Spiriferinida - Spiriferellinidae	Spiriferellina tricosa¹ Spiriferellina tricosa¹ Cooper and Grant 1976
Rhynchonellida - Wellerellidae	Cenorhynchia atmeta¹, Cenorhynchia parvula¹ Cenorhynchia atmeta¹ Cooper and Grant 1976 Cenorhynchia parvula¹ Cooper and Grant 1976
Rhynchonellida - Stenoscismatidae	Stenoscisma calvatum¹ Stenoscisma calvatum¹ Cooper and Grant 1976
Strophomenata
Orthotetida - Meekellidae	Meekella calathica¹ Meekella calathica¹ Cooper and Grant 1974
Orthotetida - Derbyiidae	Derbyia informis¹ Derbyia informis¹ Cooper and Grant 1974
Productida - Aulostegidae	Edriosteges multispinosus¹ Edriosteges multispinosus¹ Muir-Wood and Cooper 1960
Productida - Hercosiidae	Hercosestria cribrosa¹ Hercosestria cribrosa¹ Cooper and Grant 1969
Productida - Cyclacanthariidae	Cyclacantharia paucispinosa¹ Cyclacantharia paucispinosa¹ Cooper and Grant 1975
Productida - Productidae	Peniculauris peniculifera¹ Peniculauris peniculifera¹ Cooper and Grant 1975
Productida - Paucispiniferidae	Paucispinifera sulcata¹ Paucispinifera sulcata¹ Cooper and Grant 1975
Stenolaemata
Rhabdomesida - Rhomboporidae	Rhombopora lepidodendroides⁴ Rhombopora lepidodendroides⁴ Meek 1872
Cryptostomata - Septoporidae	Septopora "sp. 6"⁴, Septopora sp.⁴ Septopora "sp. 6"⁴ Septopora sp.⁴
Cryptostomata - Fenestellidae	Fenestella sp.⁴ Fenestella sp.⁴ Lonsdale 1839
Cryptostomata - Acanthocladiidae	"Polypora robustiformis" = Mackinneyella robustiformis⁴, Protoretepora cf. ampla⁴, Acanthocladia guadalupensis⁴, Polypora sp.⁴ "Polypora robustiformis" = Mackinneyella robustiformis⁴ Morozova 1965 Protoretepora cf. ampla⁴ Lonsdale 1844 Acanthocladia guadalupensis⁴ Girty 1908 Polypora sp.⁴
Gastropoda
Murchisoniina - Soleniscidae	Cylindritopsis hamiltonae² Cylindritopsis hamiltonae² Erwin 1988 snail
Bivalvia
Pectinida - Streblochondriidae	Eocamptonectes papillatus³, Streblopteria montpelierensis³ Eocamptonectes papillatus³ Girty 1908 scallop Streblopteria montpelierensis³ Girty 1910 scallop

¹Cooper and Grant 1977; ²Erwin 1988; ³Newell and Boyd 1995; ⁴Zimmerman and Cuffey 1987