Where: McCone County, Montana (47.7° N, 106.2° W: paleocoordinates 54.5° N, 78.6° W)
• coordinate stated in text
• outcrop-level geographic resolution
When: Hell Creek Formation, Maastrichtian (72.1 - 66.0 Ma)
• Middle Hell Creek. Approx. 100 feet above Fox Hills Sandstone/Hell Creek Fm contact, somewhat beneath the middle of the 250-280 feet of Hell Creek Fm east of the Fort Peck Reservoir.
• bed-level stratigraphic resolution
Environment/lithology: "channel"; green, yellow sandstone and green, yellow siltstone
Size class: macrofossils
Collection methods: surface (float),
Primary reference: E. B. Giffin, D. L. Gabriel, and R. E. Johnson. 1988. A new pachycephalosaurid skull (Ornithischia) from the Cretaceous Hell Creek Formation of Montana. Journal of Vertebrate Paleontology 7(4):398-407 [J. Alroy/R. Whatley/J. Alroy]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 12977: authorized by John Alroy, entered by Robin Whatley on 12.01.2002
Creative Commons license: CC BY (attribution)
Taxonomic list
Reptilia | |
"Stenotholus kohleri n. gen. n. sp." = Pachycephalosaurus wyomingensis
"Stenotholus kohleri n. gen. n. sp." = Pachycephalosaurus wyomingensis Gilmore 1931 ornithischian MPM 7111
| |
Hadrosauridae indet. Cope 1869 hadrosaurid |