Also known as (Admiral Formation) Locality 13 (Romer 1928), Locality IVd (Romer & Price 1940), faunal Zone 1, Wichita Group, Texas red-beds, redbeds; Brier Creek
Where: Archer County, Texas (33.6° N, 98.9° W: paleocoordinates 0.1° N, 29.5° W)
• coordinate based on nearby landmark
• outcrop-level geographic resolution
When: Admiral Formation (Wichita Group), Artinskian (290.1 - 279.3 Ma)
• "about 190 feet above the Coleman Junction." Details for Faunal Zone 1 of Romer 1928: "These beds [estimated thickness of 350 feet] occupy the middle portion of the Wichita as Cummins conceived of it; but they are now seen to occupy the lower part of this group. This zone is approximately equivalent to the Admiral Formation of Plummer and Moore (1921), although no definite correlation can be made at present." Lower Permian stratigraphy for Texas was modified by Hentz (1988).
•the Admiral Formation and middle Wichita Group are both Artinskian according to Wardlaw 2005, Permophiles (JA)
• bed-level stratigraphic resolution
Environment/lithology: terrestrial; red claystone and red sandstone
Size class: macrofossils
Collection methods: Romer (1928) paper is a review of vertebrates from the Texas red-beds with previously unreported (or undetailed) localities.
Primary reference: A. S. Romer. 1928. Vertebrate faunal horizons in the Texas Permo-Carboniferous red beds. University of Texas Bulletin 2801:67-108 [J. Alroy/R. Whatley/W. Clyde]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 13080: authorized by John Alroy, entered by Robin Whatley on 18.01.2002, edited by Torsten Liebrecht, Emma Dunne and Richard Butler
Creative Commons license: CC BY (attribution)