School Well (Paleocene of the United States)
Also known as JHH L6427
Where: Dawson County, Montana (47.1° N, 104.8° W: paleocoordinates 52.9° N, 80.8° W)
• coordinate based on political unit
• small collection-level geographic resolution
When: upper Ludlow Member (Fort Union Formation), Torrejonian (63.8 - 60.9 Ma)
Environment/lithology: terrestrial
Primary reference: J. P. Hunter. 1997. Mammals and mollusks across the Cretaceous-Tertiary boundary from Makoshika State Park and vicinity (Williston Basin), Montana. Contributions to Geology, University of Wyoming 32(1):61-114 [J. Alroy/J. Alroy/M. Uhen]more details
PaleoDB collection 14885: authorized by John Alroy, entered by John Alroy on 05.08.1996
Creative Commons license: CC BY (attribution)
Taxonomic list
• entirely from one locality
"60 m above the Cretaceous-Tertiary boundary"
NISP 7
"60 m above the Cretaceous-Tertiary boundary"
NISP 7
Show authors, comments, and common names
| Mammalia | |
|
Promioclaenus lemuroides Matthew 1897 condylarth | |
|
Periptychus sp. Cope 1881 condylarth | |
|
Paromomys maturus Gidley 1923 primate | |
|
Ptilodus montanus Douglass 1908 multituberculate | |