USNM Loc. 42183, Ostrom's Beach (Cretaceous to of the United States)

Also known as MTC WY-04028

Where: Big Horn County, Wyoming (44.5° N, 107.9° W: paleocoordinates 44.0° 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• coordinate based on unpublished field data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; lithified, intraclastic, gray claystone

• "N5, intraclastic, blocky claystone"

Size classes: macrofossils, mesofossils

Collected by M. Carrano in 2004–2010; reposited in the USNM

Collection methods: bulk, surface (float), surface (in situ), 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 137567: authorized by Matthew Carrano, entered by Matthew Carrano on 18.12.2012, edited by Jonathan Tennant and Philip Mannion

Creative Commons license: CC BY (attribution)

Taxonomic list

Malacostraca
 Decapoda -
Pleocyemata indet. Burkenroad 1963 decapod
crayfish gastroliths
Gastropoda
  -
Gastropoda indet. Cuvier 1797 snail
Chondrichthyes
 Hybodontiformes -
Hybodontoidea indet. Zangerl 1981 elasmobranch
 Hybodontiformes - Polyacrodontidae
"Hybodus cf. parvidens" = Polyacrodus parvidens
"Hybodus cf. parvidens" = Polyacrodus parvidens Woodward 1916 elasmobranch
 Hybodontiformes - Hybodontidae
Egertonodus sp. Maisey 1987 elasmobranch
 Hybodontiformes - Lonchidiidae
Parvodus sp. Rees and Underwood 2002 elasmobranch
Lonchidion sp. Estes 1964 elasmobranch
Osteichthyes
 Osteichthyes -
Osteichthyes indet. Huxley 1880 bony fish
Gnathostomata
  -
Actinopterygii indet. ray-finned fish
Actinopteri
 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
Osteichthyes
 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
 Proteida - Batrachosauroididae
Batrachosauroididae indet. Auffenberg 1958 tetrapod
 Salientia -
Anura "indet. A" Fischer von Waldheim 1813 frog
Anura indet. Fischer von Waldheim 1813 frog
cf. Scotiophryne sp. Estes 1969 frog
 Caudata -
Caudata indet. Scopoli 1777 salamander
 Caudata - Urodela
cf. Scapherpetontidae indet. Auffenberg and Goin 1959 salamander
Reptilia
 Testudinata - Helochelydridae
Naomichelys speciosa Hay 1908 turtle
 Testudines -
 Dinosauria -
Dinosauria indet. Owen 1842 dinosaur
base of neural spine
 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
Aves
 Aves -
Reptilia
 Avetheropoda - Dromaeosauridae
Deinonychus antirrhopus Ostrom 1969 coelurosaur
 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
 Neornithischia -
Tenontosaurus tilletti Ostrom 1970 bird foot dinosaur
 Loricata -
Mesoeucrocodylia indet.2 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
Teiidae indet. Gray 1827 lizard
Ptilotodon wilsoni Nydam and Cifelli 2002 lizard
 Squamata - Paramacellodidae
Paramacellodidae "indet. A" Estes 1983 lizard
Paramacellodus keebleri Nydam and Cifelli 2002 lizard
Mammalia
 Mammalia -
 Eutriconodonta -
Eutriconodonta indet. Kermack et al. 1973 mammal
 Eutriconodonta - Triconodontidae
Alticonodontinae indet. Fox 1976 mammal
 Eutriconodonta - Gobiconodontidae
Gobiconodon ostromi Jenkins and Schaff 1988 mammal
 Deltatheroida - Deltatheridiidae
Oklatheridium wiblei1 Cifelli and Davis 2015 metatherian
cf. Atokatheridium sp. Kielan-Jaworowska and Cifelli 2001 metatherian
 Multituberculata -
Multituberculata indet. multituberculate
? Paracimexomys sp. Archibald 1982 multituberculate
Bryceomys sp. Eaton 1995 multituberculate
Janumys sp. Eaton and Cifelli 2001 multituberculate
Osteichthyes
 Amphibia -
Amphibia indet. Linnaeus 1758 tetrapod