TX 7453-Stephens Co., Texas ( of the United States)

Where: Stephens County, Texas (33.0° N, 98.7° W: paleocoordinates 5.7° S, 33.0° W)

• coordinate based on nearby landmark

When: Graham Formation, Virgilian (303.4 - 298.9 Ma)

• No.3 post-Bunger cycle limestone

Environment/lithology: carbonate

Primary reference: W. Lee, C.O. Nickell, J.S. Williams and L.G. Henbest. 1938. Stratigraphic and Paleontologic Studies of the Pennsylvanian and Permian Rocks in North-Central Texas. The University of Texas Publication (3801) [M. Patzkowsky/M. Patzkowsky]more details

Purpose of describing collection: paleoecologic analysis

PaleoDB collection 1063: authorized by Tom Olszewski, entered by Tom Olszewski on 11.03.1999

Creative Commons license: CC BY (attribution)

Taxonomic list

• age assignment based on formation name
Strophomenata
 Productida - Echinoconchidae
"? Juresania nebrascensis" = Parajuresania nebrascensis
"? Juresania nebrascensis" = Parajuresania nebrascensis Owen 1852
aff. Pulchratia ovalis - originally entered as "Juresania? nebrascensis"
 Productida - Productidae
"? Retaria lasallensis" = Kutorginella lasallensis Worthen 1873
originally entered as "Retaria? lasallensis"
Antiquatonia sp. Miloradovich 1945
 Productida - Linoproductidae
Linoproductus cf. prattenianus Norwood and Pratten 1855
originally entered as "Linoproductus cf. prattenianus"
 Productida - Rugosochonetidae
Lissochonetes geinitzianus Waagen 1884
aff. L. senilis
 Orthotetida - Derbyiidae
Derbyia sp. Waagen 1884
Rhynchonellata
 Athyridida - Neoretziidae
Hustedia mormoni Marcou 1858
 Athyridida - Athyrididae
 Spiriferinida - Punctospiriferidae
"Punctospirifer kentuckyensis" = Punctospirifer kentuckensis
"Punctospirifer kentuckyensis" = Punctospirifer kentuckensis Shumard 1855
 Spiriferida - Trigonotretidae
 Spiriferida - Ambocoeliidae
 Spiriferida - Elythidae
"Phricodothyris perplexa" = Condrathyris perplexa
"Phricodothyris perplexa" = Condrathyris perplexa McChesney 1859
 Rhynchonellida - Wellerellidae
Wellerella osagensis Shumard and Swallow 1858
Bivalvia
 Carditida - Astartidae
Astartella concentrica Conrad 1842 clam