Also known as UCMP V-76138
Where: Garfield County, Montana (47.6° N, 107.0° W: paleocoordinates 54.4° N, 80.1° W)
• coordinate based on political unit
• small collection-level geographic resolution
When: Hell Creek Formation, Lancian (70.6 - 66.0 Ma)
• bed-level stratigraphic resolution
Environment/lithology: terrestrial; mudstone
Size class: mesofossils
Reposited in the UCMP
Collection methods: surface (float),
Primary reference: J. D. Archibald. 1982. A study of Mammalia and geology across the Cretaceous-Tertiary boundary in Garfield County, Montana. University of California Publications in Geological Sciences 122:1-286 [J. Alroy/J. Alroy/M. Carrano]more details
Purpose of describing collection: biostratigraphic analysis
PaleoDB collection 14520: authorized by John Alroy, entered by John Alroy on 15.05.2002, edited by Matthew Carrano
Creative Commons license: CC BY (attribution)
Taxonomic list
| Gnathostomata | |
|
Osteichthyes indet. bony fish | |
| Mammalia | |
|
Essonodon browni Simpson 1927 multituberculate | |
| Reptilia | |
|
Reptilia indet. Laurenti 1768 reptile | |
|
Baenidae indet. Cope 1882 turtle | |
|
Testudines indet. Batsch 1788 turtle | |
|
Trionychidae indet. Gray 1825 softshell turtle | |
|
| |
|
Hadrosauridae indet. Cope 1869 hadrosaurid | |
| Actinopteri | |
|
Melvius thomasi Bryant 1987 bowfin | |
|
Lepisosteus sp. Agassiz 1843 gar | |