The Pyramids, 1 mile north (Cretaceous to of the United States)
Where: Logan County, Kansas (38.8° N, 100.8° W: paleocoordinates 41.3° N, 66.9° W)
• coordinate estimated from map
When: Niobrara Formation (Colorado Group), Coniacian to Coniacian (89.8 - 83.6 Ma)
• formation-level stratigraphic resolution
Environment/lithology: limestone
Size class: macrofossils
Primary reference: R. Zangerl. 1953. The vertebrate fauna of the Selma Formation of Alabama. Part IV. The turtles of the family Toxochelyidae. Fieldiana: Geology Memoirs 3(4):145-277 [J. Alroy/M. Sommers/P. Mannion]more details
Purpose of describing collection: general faunal/floral analysis
PaleoDB collection 82002: authorized by Mark Uhen, entered by Mark Uhen on 20.07.2008
Creative Commons license: CC BY (attribution)
Taxonomic list
Show authors, comments, and common names
| Reptilia | |
Lophochelys natatrix n. gen. n. sp., Lophochelys niobrarae n. sp.
Lophochelys natatrix n. gen. n. sp. Zangerl 1953 sea turtle
Lophochelys niobrarae n. sp. Zangerl 1953 sea turtle precise locality unknown, listed as Niobrara Fm., Kansas
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"Ctenochelys procax" = Toxochelys procax
"Ctenochelys procax" = Toxochelys procax Hay 1905 turtle precise locality unknown, listed as Niobrara Fm., Kansas
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