Hell Creek (CM general) (Cretaceous of the United States)

Where: Garfield County, Montana (47.5° N, 107.1° W: paleocoordinates 54.5° N, 79.7° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Hell Creek Formation, Maastrichtian (72.1 - 66.0 Ma)

• "Laramie beds"

• bed-level stratigraphic resolution

Environment/lithology: terrestrial; lithology not reported

Size class: macrofossils

Collected by W. Utterback in 1903, 1906; reposited in the CM

Primary reference: W. J. Holland. 1905. Section of Paleontology. Annual Report of the Director for the Year Ending March 31, 1905 21-25 [M. Carrano/A. Murch/M. Carrano]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 142376: authorized by Matthew Carrano, entered by Matthew Carrano on 10.04.2013

Creative Commons license: CC BY (attribution)

Taxonomic list

 Neornithischia - Ceratopsidae
"Triceratops ? brevicornus" = Triceratops horridus1
"Triceratops ? brevicornus" = Triceratops horridus1 Marsh 1889 ceratopsid
CM 1619, 1651
 Neornithischia - Hadrosauridae
"Anatosaurus sp." = Edmontosaurus2
"Anatosaurus sp." = Edmontosaurus2 Lambe 1917 hadrosaurine