Also known as TMM 40031 (Belle Plains Formation)

Where: Archer County, Texas (33.7° N, 98.9° W: paleocoordinates 0.2° N, 29.4° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

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

• entered as Wolfcamp and Asselian - Sakmarian

•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 siliciclastic sediments

Size class: macrofossils

Reposited in the TMM

Collection methods: surface (float),

• Not the same as Tit Mountain Locality 21 (Romer 1928).

Primary reference: W. Langston. 1986. Carrolla craddocki; a new genus and species of microsaur from the Lower Permian of Texas. The Pearce-Sellards Series (43)1-20 [J. Alroy/R. Whatley/M. Carrano]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 27133: authorized by John Alroy, entered by Robin Whatley on 19.11.2002

Creative Commons license: CC BY (attribution)