Crooked Creek (Montana) (Cretaceous of the United States)
Where: Garfield County, Montana (47.6° N, 107.0° W: paleocoordinates 54.4° N, 80.1° W)
• coordinate based on political unit
When: Hell Creek Formation, Lancian (70.6 - 66.0 Ma)
Environment/lithology: terrestrial
Primary reference: R. E. Sloan and L. Van Valen. 1965. Cretaceous mammals from Montana. Science 148(3667):220-227 [J. Alroy/J. Alroy/J. Alroy]more details
PaleoDB collection 14523: authorized by John Alroy, entered by John Alroy on 21.09.1998
Creative Commons license: CC BY (attribution)
Taxonomic list
• originally a Barnum Brown AMNH locality
Show authors, comments, and common names
Mammalia | |
Essonodon browni Simpson 1927 multituberculate
Meniscoessus robustus Marsh 1889 multituberculate includes Simpson's type of "M. borealis"; not clear why Meniscoessus is omitted by Sloan and Van Valen
Cimolomys gracilis Marsh 1889 multituberculate presumably includes "Cimolodon nitidus" and definitely includes "Cimolodon sp." of Simpson 1927
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Mesodma thompsoni Clemens 1964 multituberculate | |
"Pediomys cooki" = Leptalestes cooki, "Pediomys hatcheri" = Protolambda hatcheri
"Pediomys cooki" = Leptalestes cooki Clemens 1966 metatherian presumably includes additional "Pediomys sp."
"Pediomys hatcheri" = Protolambda hatcheri Osborn 1898 metatherian | |
Didelphodon vorax Marsh 1889 metatherian |