Also known as South Platte River
Where: Jefferson County, Colorado (39.7° N, 105.0° W: paleocoordinates 46.4° N, 81.2° W)
• coordinate based on nearby landmark
• outcrop-level geographic resolution
When: Denver Formation, Late/Upper Maastrichtian (70.6 - 66.0 Ma)
• lower levels exposed in pit
• group of beds-level stratigraphic resolution
Environment/lithology: terrestrial; claystone
Size class: macrofossils
Collected by R. Brown in 1943
Collection methods: surface (in situ),
Primary reference: R. W. Brown. 1943. Cretaceous-Tertiary boundary in the Denver Basin, Colorado. Bulletin of the Geological Society of America 54:65-86 [M. Carrano/M. Carrano]more details
Purpose of describing collection: biostratigraphic analysis
PaleoDB collection 191369: authorized by Matthew Carrano, entered by Matthew Carrano on 24.01.2018
Creative Commons license: CC BY (attribution)
Taxonomic list
Reptilia | |
Dinosauria indet. dinosaur |