USNM702a1, Split Tank, Glass Mountains (Permian of the United States)

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

• coordinate estimated from map

• outcrop-level geographic resolution

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

• Massive lens 12 feet thick abounding in Collemataria 11 feet above thick limestones just below thick (116 feet) body of shale, 184feet above base of Cathedral Mountain Formation.

• group of beds-level stratigraphic resolution

Environment/lithology: marine; 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 43493: authorized by David Bottjer, entered by Matthew Clapham on 14.08.2004

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
Strophomenata
 Productida - Linoproductidae
Megousia auriculata
Megousia auriculata Muir-Wood and Cooper 1960
 Productida - Lyttoniidae
Choanodus irregularis, Eolyttonia circularis, Collemataria gregaria
Choanodus irregularis Cooper and Grant 1974
Eolyttonia circularis Cooper and Grant 1974
Collemataria gregaria Cooper and Grant 1974
Rhynchonellata
 Spiriferida - Trigonotretidae
Neospirifer mansuetus, Cartorhium latum
Neospirifer mansuetus Cooper and Grant 1976
Cartorhium latum King 1931