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Dallas-Fort Worth
USA
32.78 N, 97.17 W
Cenomanian / Cretaceous Upper Cretaceous, Upper Cenomanian, Lower Eagle Ford Group, lower Britton Formation, Turner Park Member Friedman,V. 2004. Paleontology, Paleoecology and Depositional Environment of the lower Eagle Ford Group in North Central Texas. Masters Thesis, University of Texas at Dallas. 176 pp. Part 1 (PDF, 12 MB) Part 2 (PDF, 10 MB) the specimens are provided by Vrginia Friedman sorted by genus, species sorted by morphology |
Heterohelix sp.  | Muricohedbergella delrioensis  | Muricohedbergella delrioensis  | Muricohedbergella delrioensis  | Muricohedbergella delrioensis  | Muricohedbergella delrioensis  | Planoheterohelix moremani  |
Planoheterohelix moremani  | Protoheterohelix washitensis  | Protoheterohelix washitensis  | Protoheterohelix washitensis  | Protoheterohelix sp.  |