ammonites
Cottonwood Creek (Moran Fm.) (Permian of the United States)

Also known as Locality IIb (Romer & Price)

Where: Archer County, Texas (33.4° N, 98.8° W: paleocoordinates 3.4° S, 31.4° W)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Archer City Formation (Wichita Group), Asselian (298.9 - 295.0 Ma)

• "about 50 feet below the Sedwick limestone equivalent" (Clark & Carroll, 1973)

•The former Moran Formation comprises the lower part of the Archer City Formation (Hentz, 1988, The University of Texas at Austin, Bureau of Economic Geology, Report of Investigations, 170).

• group of beds-level stratigraphic resolution

Environment/lithology: terrestrial; lithology not reported

Size class: macrofossils

Reposited in the MCZ

Primary reference: J. Clark and R. L. Carroll. 1973. Romeriid Reptiles from the Lower Permian. Bulletin of the Museum of Comparative Zoology 144(5):353-407 [J. Mueller/T. Liebrecht] more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 79163: authorized by Johannes Mueller, entered by Jana Dummasch on 27.02.2008, edited by Torsten Liebrecht and Matt Carrano