Windy Hill (Cretaceous of the United States)

Also known as UCMP V-72207

Where: Garfield County, Montana (47.6° N, 106.3° W: paleocoordinates 54.2° N, 79.3° W)

• coordinate based on unpublished field data

• small collection-level geographic resolution

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

• bed-level stratigraphic resolution

Environment/lithology: coarse channel fill; 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 14654: authorized by John Alroy, entered by John Alroy on 30.04.1994, edited by Matthew Carrano

Creative Commons license: CC BY (attribution)

Taxonomic list

Gnathostomata
  -
Amphibia
 Caudata -
Caudata indet.2 salamander
 Caudata - Urodela
Habrosaurus dilatus2 Gilmore 1928 siren
Scapherpeton tectum2 Cope 1876 salamander
Reptilia
  -
Reptilia indet.2 Laurenti 1768 reptile
 Ornithischia -
Ornithischia indet.2 ornithischian
 Ornithischia - Ceratopsidae
Ceratopsidae indet.2 Marsh 1888 ceratopsid
 Ornithischia -
Thescelosaurus sp.2 Gilmore 1913 ornithopod
 Ornithischia - Hypsilophodontidae
 Ornithischia - Hadrosauridae
Hadrosauridae indet.2 Cope 1869 hadrosaurid
 Theropoda -
Paronychodon sp.2 Cope 1876 maniraptoran
 Theropoda - Coeluridae
Coeluridae indet.2 Marsh 1881 coelurid
 Theropoda - Tyrannosauridae
Tyrannosauridae indet.2 Osborn 1906 tyrannosaurid
 Crocodylia - Alligatoridae
Brachychampsa montana2 Gilmore 1911 crocodilian
 Crocodylia - Crocodylidae
 Loricata -
"Leidyosuchus sternbergi" = Borealosuchus sternbergii2
"Leidyosuchus sternbergi" = Borealosuchus sternbergii2 Gilmore 1910 crocodilian
 Choristodera -
Champsosaurus sp.2 Cope 1876 choristodere
Champsosaurus natator2 Parks 1933 choristodere
 Sauria -
Sauria indet.2 diapsid
 Squamata - Chamopsiidae
Leptochamops denticulatus2 Gilmore 1928 squamates
 Squamata - Anguidae
Anguidae indet.2 Gray 1825 squamates
 Testudines -
Cryptodira indet.2 Cope 1868 turtle
 Testudines - Pantrionychidae
Plastomenus sp.2 Cope 1873 turtle
 Testudines - Trionychidae
Trionychidae indet.2 Gray 1825 softshell turtle
 Testudines - Adocidae
Adocus sp.2 Cope 1868 turtle
 Testudines - Nanhsiungchelyidae
Basilemys sp.2 Hay 1902 turtle
 Testudinata -
Compsemys victa2 Leidy 1856 turtle
 Testudinata - Baenidae
Baenidae indet.2 Cope 1882 turtle
Stygiochelys estesi2 Gaffney and Hiatt 1971 turtle
Mammalia
 Multituberculata - Cimolomyidae
Meniscoessus robustus Marsh 1889 multituberculate
 Cimolesta - Cimolestidae
"Cimolestes cf. cerberoides" = Ambilestes cerberoides
"Cimolestes cf. cerberoides" = Ambilestes cerberoides Lillegraven 1969 eutherian
 Theriamorpha - Stagodontidae
Didelphodon vorax Marsh 1889 metatherian
Actinopteri
 Amiiformes - Amiidae
Amia fragosa2 Jordan 1927 bowfin
 Lepisosteiformes - Lepisosteidae
Lepisosteus sp.2 Agassiz 1843 gar
Lepisosteus occidentalis2 Leidy 1856 gar
Chondrichthyes
 Rajiformes - Rhinobatidae
Myledaphus pustulosus1 Cook et al. 2014 guitarfish
UCMP 119799, 1 partial tooth; UCMP 119798, five complete and fragmented teeth