ammonites
banner
Gateway to the Paleobiology Database
AMNH501, Old Word Ranch, Glass Mountains (Permian of the United States)

Where: Texas (30.4° N, 103.1° W: paleocoordinates 1.4° N, 33.1° W)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Road Canyon Formation, Roadian (272.5 - 268.0 Ma)

• Position in formation not specified, but probably upper part. Road Canyon Fm. is Kungurian-Roadian.

• group of beds-level stratigraphic resolution

Environment/lithology: open shallow subtidal; lithified limestone

Size class: macrofossils

Preservation: replaced with silica

Reposited in the AMNH

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 81639: authorized by Matthew Clapham, entered by Matthew Clapham on 05.07.2008

Creative Commons license: CC BY (attribution)