Where: Johnson County, Texas (32.4° N, 97.2° W: paleocoordinates 30.8° N, 62.1° W)
• coordinate based on nearby landmark
• small collection-level geographic resolution
When: Eagle Ford Formation, Cenomanian (100.5 - 93.9 Ma)
• From the basal 10 ft
• bed-level stratigraphic resolution
Environment/lithology: marine; lithified, calcareous sandstone and shale
Size class: macrofossils
Reposited in the USGS
Collection methods: surface (in situ), mechanical,
Primary reference: L. W. Stephenson. 1955. Basal Eagle Ford fauna (Cenomanian) in Johnson and Tarrant Counties, Texas. United States Geological Survey Professional Paper 274-C:53-67 [J. Alroy/M. Sommers/A. Clement]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 2125: authorized by John Alroy, entered by Mike Sommers on 22.06.1999, edited by Pete Wagner
Creative Commons license: CC BY (attribution)
Taxonomic list
Cephalopoda | |
"Tarrantoceras stantoni" = Tarrantoceras (Tarrantoceras) sellardsi, "Tarrantoceras multicostatum" = Tarrantoceras (Tarrantoceras) sellardsi, Acanthoceras amphibolum, "Acanthoceras johnsonanum" = Cunningtoniceras johnsonanum, "Euomphaloceras lonsdalei" = Cunningtoniceras lonsdalei
"Euomphaloceras lonsdalei" = Cunningtoniceras lonsdalei Adkins 1928 ammonite | |
Bivalvia | |
Inoceramus arvanus Stephenson 1953 clam | |
|