Ferguson Ranch (FR) (Paleocene of the United States)
Where: McCone County, Montana (47.8° N, 106.2° W: paleocoordinates 54.0° N, 80.9° W)
• coordinate stated in text
When: Hell Creek Formation, Puercan (66.0 - 63.3 Ma)
• said to be Mantuan
Environment/lithology: terrestrial
Primary reference: R. E. Sloan, J. K. Rigby, Jr., L. M. Van Valen and D. Gabriel. 1986. Gradual dinosaur extinction and simultaneous ungulate radiation in the Hell Creek Formation. Science 232:629-633 [J. Alroy/J. Alroy/M. Carrano]more details
Purpose of describing collection: biostratigraphic analysis
PaleoDB collection 14705: authorized by John Alroy, entered by John Alroy on 30.04.1994
Creative Commons license: CC BY (attribution)
Taxonomic list
• about 1.3 m above the base of the lower Z coalsec 33 T24N R43Ebased on Lofgren et al. 1990 and presence of many apparently reworked dinosaur teeth, list may be mixed, but none of the identified mammals are definitely known from the Lancian
Show authors, comments, and common names
| Mammalia | |
Protungulatum gorgun, Protungulatum donnae, Baioconodon cf. engdahli, Baioconodon cf. nordicus, Oxyprimus sp., Oxyprimus erikseni, Mimatuta cf. minuial, Mimatuta cf. morgoth
Protungulatum gorgun Van Valen 1978 condylarth
Protungulatum donnae Sloan and Van Valen 1965 condylarth
Baioconodon cf. engdahli Archibald 1982 condylarth
Baioconodon cf. nordicus Jepsen 1930 condylarth
Oxyprimus erikseni Van Valen 1978 condylarth
Mimatuta cf. minuial Van Valen 1978 condylarth
Mimatuta cf. morgoth Van Valen 1978 condylarth | |