Hat Creek Basin (non-specific) (Oligocene of the United States)
Where: Sioux County, Nebraska (42.4° N, 103.8° W: paleocoordinates 43.6° N, 95.7° W)
• coordinate based on political unit
When: Brule Formation (White River Group), Orellan (33.9 - 33.3 Ma)
Environment/lithology: terrestrial; lithology not reported
Size class: mesofossils
Collected by J. B. Hatcher in 1888
Primary reference: C. W. Gilmore. 1928. Fossil lizards of North America. Memoirs of the National Academy of Sciences 22(3):1-201 [J. Head/J. Head/M. Carrano]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 179967: authorized by Paul Barrett, entered by Terri Cleary on 05.07.2016
Creative Commons license: CC BY (attribution)
Taxonomic list
Show authors, comments, and common names
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Helodermoides tuberculatus2 Douglass 1903 squamates USNM 10958, skull fragments; 10960, disarticulated head and body osteoderms
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Peltosaurus granulosus Cope 1873 squamates USNM 10604, slightly imperfect parietal bone; USNM 10605, fragments of dentaries with teeth; 10959, portions of dentaries and one maxilla; 10960, large no. of dermal scutes
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Calamagras murivorus1 Cope 1873 dwarf boa USNM 13824, three thoracic vertebrae. Likely from this area. "Oligocene, Sioux County, Neb. Collected by J. B. Hatcher, 1888"
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