Where: Scott County, Kansas (38.5° N, 100.9° W: paleocoordinates 40.3° N, 66.8° W)
• coordinate based on nearby landmark
• small collection-level geographic resolution
When: Niobrara Formation (Colorado Group), Turonian to Turonian (93.9 - 83.6 Ma)
• from "Kansas chalk" (presumably the Turonian to Santonian Niobrara Chalk)
• bed-level stratigraphic resolution
Environment/lithology: marine; lithified chalk
Size class: macrofossils
Preservation: adpression
Collected by W. G. Bourne; reposited in the AMNH
Primary reference: H. F. Osborn. 1899. A complete mosasaur skeleton, osseous and cartilaginous. Memoirs of the American Museum of Natural History 1(4):165-188 [J. Alroy/J. Alroy/J. Alroy]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 85963: authorized by John Alroy, entered by John Alroy on 22.01.2009
Creative Commons license: CC BY (attribution)
Taxonomic list
Reptilia | |
Tylosaurus dyspelor Cope 1870 mosasaur |