Ried Coulee 1 (Cretaceous of the United States)

Also known as UCMP V-73090

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• coordinate based on unpublished field data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 14615: authorized by John Alroy, entered by John Alroy on 30.04.1994, edited by Matthew Carrano

Creative Commons license: CC BY (attribution)

Taxonomic list

 Hybodontiformes - Lonchidiidae
Lonchidion selachos2 Estes 1964 elasmobranch
 Myliobatiformes - Dasyatidae
Myledaphus bipartitus2 Cope 1876 whiptail stingray
 Acanthomorphata - Sciaenidae
Platacodon nanus2 Marsh 1889
 Amiiformes - Amiidae
Amiidae indet.2 Huxley 1861 bowfin
Amia fragosa2 Jordan 1927 bowfin
Amia uintaensis2 Leidy 1873 bowfin
 Lepisosteiformes - Lepisosteidae
Lepisosteidae indet.2 Cuvier 1825 gar
Lepisosteus occidentalis2 Leidy 1856 gar
 Caudata - Urodela
Urodela indet.2 salamander
Scapherpeton tectum2 Cope 1876 salamander
Reptilia indet.2 Laurenti 1768 reptile
 Testudines -
Testudines indet.2 Batsch 1788 turtle
 Testudines - Trionychidae
Trionychidae indet.2 Gray 1825 softshell turtle
 Testudines -
Cryptodira indet.2 Cope 1868 turtle
 Testudines - Kinosternoidea
 Testudines - Panchelydridae
 Theropoda -
Theropoda indet.1 theropod
 Avetheropoda - Dromaeosauridae
Dromaeosauridae indet.2 Colbert and Russell 1969 coelurosaur
Saurornitholestinae indet.3 Longrich and Currie 2009 coelurosaur
UCMP 186962
 Neornithischia - Ceratopsidae
Ceratopsidae indet.2 Marsh 1888 ceratopsid
Triceratops sp.2 Marsh 1889 ceratopsid
 Loricata -
Crocodylia indet.2 crocodilian
 Crocodylia -
"Leidyosuchus sternbergi" = Borealosuchus sternbergii2
"Leidyosuchus sternbergi" = Borealosuchus sternbergii2 Gilmore 1910 crocodilian
 Crocodylia - Crocodylidae
Crocodylidae indet.2 Cuvier 1807 crocodile
 Crocodylia -
Alligatoroidea indet.2 Gray 1844 crocodilian
Brachychampsa montana2 Gilmore 1911 crocodilian
 Squamata -
Squamata indet.2 Oppel 1811 squamates
 Choristodera - Champsosauridae
Champsosauridae indet.2 Cope 1876 champsosaur
 Choristodera -
Champsosaurus natator2 Parks 1933 choristodere
 Didelphimorphia - Stagodontidae
Didelphodon vorax Marsh 1889 marsupial
 Multituberculata - Neoplagiaulacidae
Mesodma thompsoni Clemens 1964 multituberculate
Mesodma cf. formosa Marsh 1889 multituberculate
Amphibia indet.2 tetrapod