Where: Niobrara County, Wyoming (43.0° N, 104.5° W: paleocoordinates 49.5° N, 79.4° W)
• coordinate based on political unit
When: Lance Formation, Late/Upper Maastrichtian (70.6 - 66.0 Ma)
• formation-level stratigraphic resolution
Environment/lithology: terrestrial; lithology not reported
Size class: macrofossils
Collected by J. B. Hatcher and Dr. C. E. Beecher for O. C Marsh in 1889; reposited in the YPM
Primary reference: E. S. Gaffney. 1972. The systematics of the North American family Baenidae (Reptilia, Cryptodira). Bulletin of the American Museum of Natural History 147(5):245-312 [J. Alroy/M. Sommers/R. Benson]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 123098: authorized by Roger Benson, entered by Roger Benson on 11.01.2012
Creative Commons license: CC BY (attribution)
Taxonomic list
Reptilia | |
Eubaena cephalica n. gen. n. sp.2
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"Aspideretes beecheri n. sp." = Trionyx beecheri1
"Aspideretes beecheri n. sp." = Trionyx beecheri1 Hay 1904 softshell turtle YPM specimen (holotype partial skeleton)
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