Jordan Coulee (Cretaceous of the United States)

Also known as UCMP V-73093

Where: Garfield County, Montana (47.5° N, 106.9° W: paleocoordinates 54.3° N, 80.0° W)

• coordinate based on unpublished field data

• small collection-level geographic resolution

When: Hell Creek Formation, Lancian (70.6 - 66.0 Ma)

• group of beds-level stratigraphic resolution

Environment/lithology: terrestrial; sandstone

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: taxonomic analysis

PaleoDB collection 14574: authorized by John Alroy, entered by John Alroy on 15.05.2002, edited by Matthew Carrano

Creative Commons license: CC BY (attribution)

Taxonomic list

 Myliobatiformes - Dasyatidae
Myledaphus bipartitus1 Cope 1876 whiptail stingray
 Amiiformes - Amiidae
Amia fragosa1 Jordan 1927 bowfin
 Lepisosteiformes - Lepisosteidae
Lepisosteus occidentalis1 Leidy 1856 gar
 Proteida - Batrachosauroididae
Opisthotriton sp.1 Auffenberg 1961 salamander
 Caudata - Urodela
Urodela indet.1 salamander
Scapherpeton tectum1 Cope 1876 salamander
Reptilia indet.1 Laurenti 1768 reptile
 Theropoda -
 Avetheropoda - Caenagnathidae
Chirostenotes sp.1 Gilmore 1924 coelurosaur
 Avetheropoda - Dromaeosauridae
Richardoestesia cf. gilmorei2 Currie et al. 1990 coelurosaur
UCMP 123543
 Neornithischia - Ceratopsidae
Ceratopsidae indet.1 Marsh 1888 ceratopsid
 Neornithischia - Thescelosauridae
Thescelosaurus sp.1 Gilmore 1913 ornithischian
 Crocodylia -
"Leidyosuchus sternbergi" = Borealosuchus sternbergii1, Brachychampsa montana1
"Leidyosuchus sternbergi" = Borealosuchus sternbergii1 Gilmore 1910 crocodilian
Brachychampsa montana1 Gilmore 1911 crocodilian
 Squamata - Chamopsiidae
Leptochamops denticulatus1 Gilmore 1928 lizard
 Multituberculata - Cimolodontidae
Cimolodon nitidus Marsh 1889 multituberculate