Where: Niobrara County, Wyoming (43.0° N, 104.2° W: paleocoordinates 44.4° N, 95.5° W)
• coordinate based on nearby landmark
• small collection-level geographic resolution
When: Chadron Formation, Chadronian (37.2 - 33.9 Ma)
Environment/lithology: terrestrial; lithology not reported
Size classes: macrofossils, mesofossils
Collected by Charles Falkenback, Morris Skinner in 1953
Primary reference: R. M. Sullivan. 1979. Revision of the Paleogene genus Glyptosaurus (Reptilia, Anguidae). Bulletin of the American Museum of Natural History 163(1):1-72 [P. Barrett/T. Cleary]more details
Purpose of describing collection: general faunal/floral analysis
PaleoDB collection 181602: authorized by Paul Barrett, entered by Terri Cleary on 20.09.2016
Creative Commons license: CC BY (attribution)
Taxonomic list
Reptilia | |
Helodermoides tuberculatus Douglass 1903 squamates AMNH Frick collection no. 8725, articulated vertebrae and body osteoderms
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