ammonites
USNM702t, Gap Tank, Stockton Gap, Glass Mountains (Permian of the United States)

Where: Brewster County, Texas (30.5° N, 103.2° W: paleocoordinates 3.7° S, 36.1° W)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Neal Ranch Formation, Asselian (298.9 - 295.0 Ma)

• Wolfcampian (Nealian)

• group of beds-level stratigraphic resolution

Environment/lithology: marine; 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 43509: authorized by David Bottjer, entered by Matthew Clapham on 14.08.2004, edited by Uta Merkel