North Horn Mountain (Cretaceous of the United States)

Where: Emery County, Utah (39.0° N, 111.0° W)

• Paleocoordinates: 51.7° N, 76.0° W (Wright 2013)

• coordinate based on political unit

• small collection-level geographic resolution

When: North Horn Formation, Lancian (72.2 - 66.0 Ma)

Environment/lithology: terrestrial

Primary reference: R. L. Cifelli, R. L. Nydam, J. G. Eaton, J. D. Gardner, and J. I. Kirkland. 1999. Vertebrate faunas of the North Horn Formation (Upper Cretaceous–Lower Paleocene), Emery and Sanpete counties. In D. D. Gillette (ed.), Vertebrate Paleontology in Utah. Utah Geological Survey Miscellaneous Publication 99-1:377-388 [J. Alroy/J. Alroy/M. Carrano]more details

PaleoDB collection 14599: authorized by John Alroy, entered by John Alroy on 19.05.2000, edited by Albert Garcia Selles, Katherine Magoulick and Matthew Carrano

Creative Commons license: CC0 (CC0)

Taxonomic list

• table says this is locality 2 on map, but text indicates it actually is locality 1 on map
Reptilia
 Ornithischia - Ovaloolithidae
Ovaloolithus utahensis2 Bray 1999 ornithopod
HEC 880-1, 2, 3, 4
 Saurischia - Tyrannosauridae
Tyrannosauridae indet.3 Osborn 1906 tyrannosaurid
UMNH VP 11000
 Saurischia - Elongatoolithidae
"Spongioolithus hirschi" = Continuoolithus canadensis2
"Spongioolithus hirschi" = Continuoolithus canadensis2 Zelenitsky et al. 1996 theropod
HEC 77
Mammalia
 Tribosphenida - Pediomyidae
Leptalestes sp.1 Davis 2007 metatherian
compared to P. prokrejcii and P. krejcii
 Tribosphenida - Alphadontidae
Alphadon sp. Simpson 1927 metatherian
one form compared to A. eatoni and another to A. sahnii
 Tribosphenida -
Eutheria indet. eutherian
 Eutheria -
Proteutheria indet. Romer 1966 eutherian
 Multituberculata - Neoplagiaulacidae
Mesodma cf. hensleighi Lillegraven 1969 multituberculate
 Multituberculata - Cimolomyidae
Cimolomys sp. Marsh 1889 multituberculate
 Multituberculata -
Paracimexomys sp. Archibald 1982 multituberculate