USNM707q, Clay Slide, Glass Mountains (Permian of the United States)

Where: Brewster County, Texas (30.3° N, 103.3° W: paleocoordinates 0.9° N, 33.5° W)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Cathedral Mountain Formation, Kungurian (279.3 - 272.3 Ma)

• Near base of thick shale unit. Leonardian (Cathedralian).

• group of beds-level stratigraphic resolution

Environment/lithology: marine; shale

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 43574: authorized by David Bottjer, entered by Matthew Clapham on 15.08.2004

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).
Show authors, comments, and common names
Trilobita
 Proetida - Phillipsiidae
Delaria granti1
Delaria granti1 Brezinski 1992 trilobite
Rhynchonellata
 Spiriferida - Trigonotretidae
Neospirifer mansuetus2
Neospirifer mansuetus2 Cooper and Grant 1976
 Spiriferida - Elythidae
"Neophricadothyris bullata" = Permophricodothyris bullata2
"Neophricadothyris bullata" = Permophricodothyris bullata2 Cooper and Grant 1976
 Athyridida - Neoretziidae
Hustedia sp.2
Hustedia sp.2 Hall and Clarke 1893
Strophomenata
 Strophomenida - Rugosochonetidae
Dyoros (Lissosia) vagabundus2, Dyoros (Tetragonetes) lateralis2
Dyoros (Lissosia) vagabundus2 Cooper and Grant 1975
Dyoros (Tetragonetes) lateralis2 Cooper and Grant 1975
 Productida - Productidae
Peniculauris subcostata2
 Productida - Productellidae
Xestosia schucherti2, Nudauris linospina2, Thamnosia anterospinosa2
Nudauris linospina2 Cooper and Grant 1975
Thamnosia anterospinosa2 Cooper and Grant 1969
 Productida - Linoproductidae
Megousia umbonata2
Megousia umbonata2 Cooper and Grant 1975
 Productida - Paucispiniferidae
Anemonaria sublaevis2
 Productida - Hercosiidae
Hercosia uddeni2
Hercosia uddeni2 Bose 1916
 Productida - Aulostegidae
Institella leonardensis2
Gastropoda
 Bellerophontida - Euphemitidae
"Euphemitopsis paucinodosa" = Euphemitopsis paucinodosus7
"Euphemitopsis paucinodosa" = Euphemitopsis paucinodosus7 Yochelson 1960 snail
 Bellerophontida - Bellerophontidae
Knightites (Knightites) sp.7
Knightites (Knightites) sp.7 Moore 1941 snail
 Euomphalina - Omphalotrochidae
Babylonites turritus6
Babylonites turritus6 Yochelson 1956 snail
Cephalopoda
 Goniatitida - Perrinitidae
Perrinites hilli2
Perrinites hilli2 Smith 1903 ammonite
 Goniatitida - Paragastrioceratidae
Paragastrioceras sp.2
Paragastrioceras sp.2 Tchernow 1907 ammonite
Bivalvia
 Pectinida - Deltopectinidae
Cyrtorostra varicostata5
Cyrtorostra varicostata5 Branson 1930 scallop
Hexactinellida
 Lyssacinosa - Stiodermatidae
Stioderma coscinum3
Stioderma coscinum3 Finks 1960 glass sponge
Demospongiae
 Lithistida - Chiastoclonellidae
Defordia sp.3, Defordia cf. densa3, Insulipora elegans3
Defordia sp.3 King 1943 demosponge
Defordia cf. densa3 Finks 1960 demosponge
Insulipora elegans3 Finks 1960 demosponge
 Lithistida - Anthracosyconidae
Anthracosycon regulare3
Anthracosycon regulare3 King 1943 demosponge
 Agelasida - Guadalupiidae
Guadalupia zitteliana4
Guadalupia zitteliana4 Girty 1909 demosponge
1Brezinski 1992; 2Cooper and Grant 1977; 3Finks 1960; 4Finks 2010; 5Newell and Boyd 1995; 6Yochelson 1956; 7Yochelson 1960