TX 7440A-Young Co., Texas ( of the United States)

Where: Young County, Texas (33.0° N, 98.7° W: paleocoordinates 5.7° S, 32.9° W)

• coordinate based on nearby landmark

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

• fossiliferous zone 20 to 40 feet above Bunger ls mbr

Environment/lithology: shale

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 1132: authorized by Tom Olszewski, entered by Tom Olszewski on 12.03.1999

Creative Commons license: CC BY (attribution)

Taxonomic list

• age assignment based on formation name
 Productida - Echinoconchidae
"Juresania nebrascensis" = Parajuresania nebrascensis
"Juresania nebrascensis" = Parajuresania nebrascensis Owen 1852
 Productida - Productidae
"Retaria lasallensis" = Kutorginella lasallensis, Antiquatonia sp.
"Retaria lasallensis" = Kutorginella lasallensis Worthen 1873
Antiquatonia sp. Miloradovich 1945
 Productida - Rugosochonetidae
 Athyridida - Neoretziidae
Hustedia mormoni Marcou 1858
 Athyridida - Athyrididae
 Spiriferida - Ambocoeliidae
 Spiriferida - Elythidae
"Phricodothyris perplexa" = Condrathyris perplexa
"Phricodothyris perplexa" = Condrathyris perplexa McChesney 1859
 Ostreida - Pinnidae
Aviculopinna sp. Meek 1864 oyster
 Carditida - Astartidae
Astartella concentrica Conrad 1842 clam
 Protobranchia -
 Protobranchia - Sareptidae
Paleyoldia glabra Beede and Rogers 1898 clam
originally entered as "Palaeyoldia glabra"
 Protobranchia - Nuculanidae
Phestia bellistriata pointed nut clam