Also known as Locality 7 (Romer 1928), faunal Zone 0, Cisco Group, Texas red-beds, redbeds
Where: Archer County, Texas (33.6° N, 98.6° W: paleocoordinates 2.7° S, 30.8° W)
• coordinate based on nearby landmark
• local area-level geographic resolution
When: Putnam Formation (Cisco Group), Sakmarian (293.5 - 290.1 Ma)
• Details for Faunal Zone 0 of Romer 1928: Plummer and Moore 1921 assign the Putnam Formation to the Cisco Group - boundary is at the top of the Coleman Junction Limestone. " If the locality was near the mouth, as was probably the case, it would be just below the Wichita-Cisco boundary." Though stated to be Pennsylvanian by Romer, the Putnam F. is now widely regarded as Lower Permian (Shelley 1984).
•the "Putnam Formation" falls between the Moran and Admiral formations (cf., Ross and Ross 1962, Fig. 3), and therefore equates to the Sedwick Formation, Santa Ana Branch Shale, and Coleman Junction Formation, all of which are Sakmarian (Wardlaw 2005, Permophiles)
• formation-level stratigraphic resolution
Environment/lithology: terrestrial; red claystone and red, sandy, conglomeratic shale
•
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 28125: authorized by John Alroy, entered by Robin Whatley on 23.01.2003
Creative Commons license: CC BY (attribution)
Taxonomic list
Amphibia | |
Eryops sp. Cope 1877 tetrapod | |
Osteichthyes | |
Dimetrodon sp. Cope 1878 synapsid | |
Edaphosaurus sp. Cope 1882 synapsid | |
Diadectes sp. Cope 1878 tetrapod |