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• coordinate based on unpublished field data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

 Decapoda -
Pleocyemata indet. Burkenroad 1963 decapod
crayfish gastroliths
Gastropoda indet. Cuvier 1797 snail
 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 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
 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
 Testudines -
 Testudinata - Helochelydridae
Naomichelys speciosa Hay 1908 turtle
 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
 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
 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 -
 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
 Amphibia -
Amphibia indet. Linnaeus 1758 tetrapod