Cox's Camp, 17 (Belle Plains Formation) (Permian of the United States)

Also known as Locality 17 (Romer 1928), Wooderum's pasture, faunal Zone 2, Middle Wichita Group, Texas red-beds, redbeds

Where: Baylor County, Texas (33.7° N, 98.9° W: paleocoordinates 0.1° N, 29.5° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Belle Plains Formation (Wichita Group), Artinskian (290.1 - 279.3 Ma)

• "about 350 beet above the base of the Wichita." Details for Faunal Zone 2 of Romer 1928: "Beyond the horizon of Godwin Creek is found a series of beds about 200 feet in thickness, of a transitional character, in which thin and impure limestones are occasionally present."

•the base of the Artinskian is just above Coleman Junction Formation (Wardlaw 2005, Permophiles), and the "Belle Plains" = Petrolia Formation is below the Waggoner Ranch Formation, which is well above the Coleman Junction and whose base equals the base of the Bead Mountain Formation (Tabor et al. 2002), which is in the middle of the Artinskian (Wardlaw 2005)

• group of beds-level stratigraphic resolution

Environment/lithology: terrestrial; red claystone and limestone

• red-beds and "6-inch limestone"

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: E. C. Case. 1910. New or little known reptiles and amphibians from the Permian (?) of Texas. Bulletin of the American Museum of Natural History 28:163-181 [J. Mueller/T. Liebrecht/M. Carrano]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 28143: authorized by John Alroy, entered by Robin Whatley on 25.01.2003

Creative Commons license: CC BY (attribution)

Taxonomic list

Amphibia
 Temnospondyli - Dissorophidae
Aspidosaurus glascocki n. sp. Case 1910 tetrapod
 Temnospondyli - Eryopidae
Eryops sp. Cope 1877 tetrapod
 Temnospondyli - Trimerorhachidae
"Trimerorhachis alleni n. sp." = Trimerorhachis insignis
"Trimerorhachis alleni n. sp." = Trimerorhachis insignis Cope 1878 tetrapod
Osteichthyes
 Synapsida - Sphenacodontidae
Dimetrodon sp. Cope 1878 synapsid
 Cotylosauria - Diadectidae
Diadectes sp. Cope 1878 tetrapod