USNM Loc. 42222 (Cretaceous to of the United States)

Also known as MTC WY-05013

Where: Big Horn County, Wyoming (44.5° N, 107.8° W: paleocoordinates 43.9° N, 59.9° W)

• coordinate based on unpublished field data

• small collection-level geographic resolution

When: Little Sheep Mudstone Member (Cloverly Formation), Aptian to Aptian (125.0 - 100.5 Ma)

• Unit V

• bed-level stratigraphic resolution

Environment/lithology: lacustrine; poorly lithified, gray claystone

• "5Y 7/1, laminated claystone with N8 mottling"

Size classes: macrofossils, mesofossils

Collected by M. Carrano in 2005–2010; reposited in the USNM

Collection methods: bulk, surface (float), sieve,

Primary reference: M. P. J. Oreska, M. T. Carrano, and K. M. Dzikiewicz. 2013. Vertebrate paleontology of the Cloverly Formation (Lower Cretaceous), I: faunal composition, biogeographic relationships, and sampling. Journal of Vertebrate Paleontology 33(2):264-292 [M. Carrano/M. Carrano/M. Carrano]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 137577: authorized by Matthew Carrano, entered by Matthew Carrano on 18.12.2012, edited by Philip Mannion

Creative Commons license: CC BY (attribution)

Taxonomic list

 Decapoda -
Pleocyemata indet. Burkenroad 1963 decapod
crayfish gastroliths
 Hybodontiformes -
Hybodontoidea indet. Zangerl 1981 elasmobranch
 Hybodontiformes - Lonchidiidae
Lonchidion sp. Estes 1964 elasmobranch
 Osteichthyes -
Osteichthyes indet. Huxley 1880 bony fish
Actinopterygii indet. ray-finned fish
 Pycnodontiformes - Pycnodontidae
 Holostei -
 Neopterygii -
Amiiformes indet. Hay 1929 bowfin
 Amiiformes - Amiidae
Amiidae "indet. A" Huxley 1861 bowfin
Vidalamiinae indet. Grande and Bemis 1998 bowfin
 Lepisosteiformes -
aff. Lepidotes sp. Agassiz 1843 gar
 Neopterygii -
Semionotiformes indet. Arambourg and Bertin 1958
 Dipnoi - Ceratodontidae
? Ceratodus sp. Agassiz 1838 lungfish
Ceratodus cf. guentheri Marsh 1878 lungfish
Ceratodus frazieri Ostrom 1970 lungfish
 Temnospondyli - Albanerpetontidae
Albanerpeton sp. Estes and Hoffstetter 1976 tetrapod
 Salientia -
Anura "indet. A" Fischer von Waldheim 1813 frog
Anura indet. Fischer von Waldheim 1813 frog
 Caudata -
Caudata indet. Scopoli 1777 salamander
 Caudata - Urodela
cf. Scapherpetontidae indet. Auffenberg and Goin 1959 salamander
 Testudines -
? Glyptops pervicax Hay 1908 turtle
 Testudinata - Helochelydridae
Naomichelys speciosa Hay 1908 turtle
 Saurischia -
? Titanosauriformes indet. Salgado et al. 1997 sauropod
Theropoda "indet. A" Marsh 1881 theropod
Theropoda "indet. B" Marsh 1881 theropod
Theropoda indet. Marsh 1881 theropod
Tetanurae indet. Gauthier 1986 tetanuran
 Avetheropoda - Dromaeosauridae
Deinonychus antirrhopus Ostrom 1969 coelurosaur
 Aves -
 Ornithischia -
Ornithischia indet. Seeley 1888 ornithischian
Ankylosauria indet. Osborn 1923 ornithischian
 Ornithischia - Nodosauridae
"Sauropelta edwardsi" = Sauropelta edwardsorum
"Sauropelta edwardsi" = Sauropelta edwardsorum Ostrom 1970 ornithischian
 Neornithischia - Thescelosauridae
cf. Zephyrosaurus sp. Sues 1980 ornithischian
 Loricata -
Mesoeucrocodylia indet. Whetstone and Whybrow 1983 crocodilian
 Loricata - Goniopholididae
cf. Goniopholididae indet. Cope 1875 crocodilian
 Crocodylia -
Crocodylia indet. Owen 1842 crocodilian
 Loricata - Pholidosauridae
cf. Pholidosauridae indet. von Zittel and Eastman 1902 crocodilian
 Loricata - Bernissartiidae
"cf. Bernissartidae indet." = Bernissartiidae
"cf. Bernissartidae indet." = Bernissartiidae Dollo 1883 crocodilian
 Squamata -
Squamata indet. Oppel 1811 lizard
 Squamata - Teiidae
Teiidae "indet. A" Gray 1827 lizard
Ptilotodon wilsoni Nydam and Cifelli 2002 lizard
 Squamata - Paramacellodidae
Paramacellodidae indet. Estes 1983 lizard
 Mammalia -
 Eutriconodonta -
Eutriconodonta indet. Kermack et al. 1973 mammal
 Eutriconodonta - Triconodontidae
Alticonodontinae indet. Fox 1976 mammal
 Theriiformes -
Metatheria indet. metatherian
 Deltatheroida - Deltatheridiidae
cf. Oklatheridium sp. Davis et al. 2008 metatherian
 Theriiformes - Spalacotheriidae
Spalacotheriidae indet. Marsh 1887 mammal
 Multituberculata -
Multituberculata indet. multituberculate
? Paracimexomys sp. Archibald 1982 multituberculate
 Amphibia -
Amphibia indet. Linnaeus 1758 tetrapod