Also known as Locality 36 (Romer 1928), faunal Zone 4, Lower Clear Fork Group, Texas red-beds, redbeds
Where: Baylor County, Texas (33.8° N, 99.1° W: paleocoordinates 2.2° N, 28.7° W)
• coordinate based on nearby landmark
• outcrop-level geographic resolution
When: Arroyo Formation (Clear Fork Group), Kungurian (279.3 - 272.3 Ma)
• "probably about 100 feet above the Lueders" Limestone. 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 28261: authorized by John Alroy, entered by Robin Whatley on 03.02.2003, edited by Torsten Liebrecht
Creative Commons license: CC BY (attribution)
Taxonomic list
Amphibia | |
Eryops sp. Cope 1877 tetrapod | |
Isodectes sp. Cope 1896 tetrapod | |
Diplocaulus sp. Cope 1877 tetrapod
Diplocaulus magnicornis1 Cope 1882 tetrapod CNHM UC 1317; specimen is deducted from Romer's (1928) original 14 occurences of Diplocaulus sp.
| |
Osteichthyes | |
Dimetrodon sp. Cope 1878 synapsid | |
"Theropleura sp." = Ophiacodon
"Theropleura sp." = Ophiacodon Marsh 1878 ophiacodont | |
Reptilia | |
Captorhinus sp. Cope 1896 eureptile |