USGS 7649, D Ranch South Wells, Delaware Mountains (Permian of the United States)

Where: Texas (31.8° N, 104.7° W: paleocoordinates 3.5° N, 33.5° W)

• coordinate stated in text

• small collection-level geographic resolution

When: South Wells Member (Cherry Canyon Formation), Wordian (266.9 - 264.3 Ma)

• group of beds-level stratigraphic resolution

Environment/lithology: slope; lithified limestone

Size class: macrofossils

Primary reference: A. K. Miller and W. M. Furnish. 1940. Permian ammonoids of the Guadalupe Mountain region and adjacent area. Geological Society of America Special Paper 26:1-242 [M. Clapham/M. Clapham/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 105515: authorized by Matthew Clapham, entered by Matthew Clapham on 21.02.2011

Creative Commons license: CC BY (attribution)

Taxonomic list

Rhynchonellata
 Rhynchonellida - Petasmariidae
Leiorhynchoidea sulcata Cooper and Grant 1976
Cephalopoda
 Goniatitida - Paragastrioceratidae
"Pseudogastrioceras roadense" = Roadoceras roadense, "Pseudogastrioceras altudense" = Altudoceras altudense
"Pseudogastrioceras roadense" = Roadoceras roadense Böse 1919 ammonite
"Pseudogastrioceras altudense" = Altudoceras altudense Böse 1919 ammonite
 Goniatitida - Cyclolobidae
Waagenoceras dieneri, "Waagenoceras guadalupense" = Mexicoceras guadalupense
Waagenoceras dieneri Böse 1919 ammonite
"Waagenoceras guadalupense" = Mexicoceras guadalupense Girty 1909 ammonite