Also known as Locality 43 (Romer 1928), faunal Zone 4, Lower Clear Fork Group, Texas red-beds, redbeds

Where: Baylor County, Texas (33.6° N, 99.3° W: paleocoordinates 2.2° N, 28.8° W)

• coordinate based on nearby landmark

• local area-level geographic resolution

When: Arroyo Formation (Clear Fork Group), Kungurian (279.3 - 272.3 Ma)

• "the highest horizon in which Permian vertebrate remains have been found in Texas... probably 250 to 300 feet above the base of the Clear Fork, although the horizon cannot be stated with certainty." Details for Faunal Zone 4 of Romer 1928: "The vertebrate remains are confined to approximately the lowest 250 feet or so of the Clear Fork.."

•the base and top of the Clear Fork Group (i.e., Arroyo, Vale, and Choza formations) are both within the Kungurian: see Wardlaw 2005 (Permophiles) for the base, and DiMichele et al. 2001 (J Paleont) for the top

• group of beds-level stratigraphic resolution

Environment/lithology: terrestrial; red claystone and conglomeratic 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 28277: authorized by John Alroy, entered by Robin Whatley on 03.02.2003

Creative Commons license: CC BY (attribution)