List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Malacostraca
- Decapoda
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Pleocyemata indet.
Burkenroad 1963
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95 specimens | |||||||||
| crayfish gastroliths | ||||||||||
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Gastropoda
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Gastropoda indet.
Cuvier 1795
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1 specimen | |||||||||
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unclassified
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Osteichthyes indet.
(Huxley 1880)
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764 specimens | |||||||||
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Dipnoi
- Ceratodontidae
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? Ceratodus sp.
Agassiz 1838
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9 specimens | |||||||||
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Ceratodus cf. guentheri
Marsh 1878
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1 specimen | |||||||||
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Ceratodus frazieri
Ostrom 1970
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1 specimen | |||||||||
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Mammalia
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Mammalia indet.
(Linnaeus 1758)
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20 specimens | |||||||||
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Mammalia
- Deltatheroida
- Deltatheridiidae
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cf. Oklatheridium sp.
Davis et al. 2008
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3 specimens | |||||||||
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= Oklatheridium wiblei
Cifelli and Davis 2015
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Cifelli and Davis 2015 | |||||||||
| USNM 546657, RM2 preserving the paracone and parastylar lobe only | ||||||||||
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cf. Atokatheridium sp.
Kielan-Jaworowska and Cifelli 2001
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1 specimen | |||||||||
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Mammalia
- Multituberculata
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Multituberculata indet.
(Cope 1884)
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6 specimens | |||||||||
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Janumys sp.
Eaton and Cifelli 2001
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1 specimen | |||||||||
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Bryceomys sp.
Eaton 1995
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2 specimens | |||||||||
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? Paracimexomys sp.
Archibald 1982
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4 specimens | |||||||||
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Mammalia
- Eutriconodonta
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Eutriconodonta indet.
Kermack et al. 1973
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5 specimens | |||||||||
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Mammalia
- Eutriconodonta
- Triconodontidae
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Alticonodontinae indet.
Fox 1976
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8 specimens | |||||||||
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Mammalia
- Eutriconodonta
- Gobiconodontidae
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Gobiconodon ostromi
Jenkins and Schaff 1988
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2 specimens | |||||||||
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Reptilia
- Squamata
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Squamata indet.
Oppel 1811
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17 specimens | |||||||||
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Reptilia
- Paramacellodidae
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Paramacellodidae informal indet. A
Estes 1983
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2 specimens | |||||||||
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Paramacellodus keebleri
Nydam and Cifelli 2002
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1 specimen | |||||||||
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Reptilia
- Teiidae
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Teiidae informal indet. A
Gray 1827
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1 specimen | |||||||||
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Teiidae indet.
Gray 1827
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4 specimens | |||||||||
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Ptilotodon wilsoni
Nydam and Cifelli 2002
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2 specimens | |||||||||
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Reptilia
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? Glyptops pervicax
Hay 1908
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49 specimens | |||||||||
| nomen dubium belonging to Paracryptodira | ||||||||||
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Reptilia
- Testudines
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Testudines informal indet. A
Batsch 1788
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22 specimens | |||||||||
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Testudines indet.
Batsch 1788
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75 specimens | |||||||||
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Reptilia
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Naomichelys speciosa
Hay 1908
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126 specimens | |||||||||
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cf. Atoposauridae indet.
(Gervais 1871)
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604 specimens | |||||||||
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= Mesoeucrocodylia indet.
Whetstone and Whybrow 1983
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Tennant et al. 2016 | |||||||||
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Crocodylia indet.
(Owen 1842)
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108 specimens | |||||||||
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Reptilia
- Bernissartiidae
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cf. Bernissartidae indet.
Dollo 1883
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57 specimens | |||||||||
| corrected as Bernissartiidae | ||||||||||
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Reptilia
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cf. Pholidosauridae indet.
(von Zittel and Eastman 1902)
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199 specimens | |||||||||
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Reptilia
- Goniopholididae
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cf. Goniopholididae indet.
Cope 1875
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20 specimens | |||||||||
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Reptilia
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Dinosauria indet.
(Owen 1842)
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1 specimen | |||||||||
| base of neural spine | ||||||||||
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Ornithischia indet.
(Seeley 1888)
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280 specimens | |||||||||
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Tenontosaurus tilletti
Ostrom 1970
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16 specimens | |||||||||
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cf. Zephyrosaurus sp.
Sues 1980
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6 specimens | |||||||||
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Ankylosauria indet.
(Osborn 1923)
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13 specimens | |||||||||
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Reptilia
- Nodosauridae
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Sauropelta edwardsi
Ostrom 1970
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9 specimens | |||||||||
| corrected as Sauropelta edwardsorum | ||||||||||
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Reptilia
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Theropoda informal indet. A
(Marsh 1881)
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23 specimens | |||||||||
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Theropoda informal indet. B
(Marsh 1881)
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1 specimen | |||||||||
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Theropoda indet.
(Marsh 1881)
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68 specimens | |||||||||
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Tetanurae indet.
Gauthier 1986
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3 specimens | |||||||||
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Reptilia
- Dromaeosauridae
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Deinonychus antirrhopus
Ostrom 1969
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35 specimens | |||||||||
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Reptilia
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? Aves indet.
(Linnaeus 1758)
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3 specimens | |||||||||
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? Titanosauriformes indet.
Salgado et al. 1997
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119 specimens | |||||||||
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Amphibia
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Amphibia indet.
(Linnaeus 1758)
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299 specimens | |||||||||
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Amphibia
- Temnospondyli
- Albanerpetontidae
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Albanerpeton sp.
Estes and Hoffstetter 1976
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118 specimens | |||||||||
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Amphibia
- Temnospondyli
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Anura informal indet. A
(Fischer von Waldheim 1813)
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42 specimens | |||||||||
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Anura indet.
(Fischer von Waldheim 1813)
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39 specimens | |||||||||
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cf. Scotiophryne sp.
Estes 1969
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3 specimens | |||||||||
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Caudata indet.
(Scopoli 1777)
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21 specimens | |||||||||
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Amphibia
- Temnospondyli
- Batrachosauroididae
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Batrachosauroididae indet.
Auffenberg 1958
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5 specimens | |||||||||
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Amphibia
- Temnospondyli
- Urodela
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cf. Scapherpetontidae indet.
(Auffenberg and Goin 1959)
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10 specimens | |||||||||
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Actinopterygii
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Actinopterygii indet.
Cope 1887
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103 specimens | |||||||||
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Actinopteri
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Holostei indet.
(Müller 1846)
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376 specimens | |||||||||
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Actinopteri
- Amiiformes
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Amiiformes indet.
Hay 1929
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4 specimens | |||||||||
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Actinopteri
- Amiiformes
- Amiidae
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Amiidae informal indet. A
Huxley 1861
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48 specimens | |||||||||
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Vidalamiinae indet.
Grande and Bemis 1998
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16 specimens | |||||||||
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Actinopteri
- Semionotiformes
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Semionotiformes indet.
Arambourg and Bertin 1958
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8 specimens | |||||||||
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Actinopteri
- Lepisosteiformes
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aff. Lepidotes sp.
Agassiz 1832
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4 specimens | |||||||||
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Actinopteri
- Pycnodontiformes
- Pycnodontidae
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aff. Pycnodontidae indet.
(Agassiz 1833)
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4 specimens | |||||||||
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Chondrichthyes
- Hybodontiformes
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Hybodontoidea indet.
Agassiz 1834
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212 specimens | |||||||||
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Chondrichthyes
- Hybodontiformes
- Hybodontidae
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Egertonodus sp.
Maisey 1987
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29 specimens | |||||||||
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Chondrichthyes
- Hybodontiformes
- Lonchidiidae
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Parvodus sp.
Rees and Underwood 2002
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1 specimen | |||||||||
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Lonchidion sp.
Estes 1964
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13 specimens | |||||||||
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Chondrichthyes
- Hybodontiformes
- Polyacrodontidae
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Hybodus cf. parvidens
Woodward 1916
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9 specimens | |||||||||
| recombined as Polyacrodus parvidens | ||||||||||
| see common names | ||||||||||
Geography
| Country: | United States | State/province: | Wyoming | County: | Big Horn |
| Coordinates: | 44.5° North, 107.9° West (view map) | ||||
| Paleocoordinates: | 44.0° North, 59.9° West | ||||
| Basis of coordinate: | unpublished field data | ||||
| Altitude: | 1269 meters | ||||
| Geographic resolution: | small collection |
Stratigraphy
| Formation: | Cloverly | Member: | Little Sheep Mudstone | ||
| Stratigraphic resolution: | bed | ||||
| Stratigraphy comments: Unit V
D'Emic et al. 2019: Little Sheep Mudstone Member was deposited ca. 124–109 Ma in a time of low sediment supply. | |||||
Lithology and environment
| Primary lithology: | intraclastic,gray lithified claystone |
| Includes fossils? | Y |
| Lithology description: "N5, intraclastic, blocky claystone" | |
| Environment: | lacustrine indet. |
Taphonomy
| Modes of preservation: | body |
| Degree of concentration: | concentrated |
| Size of fossils: | macrofossils,mesofossils |
| Spatial orientation: | random |
| Preservation of anatomical detail: | good |
| Fragmentation: | occasional |
| Spatial resolution: | parautochthonous |
Collection methods and comments
| Collection methods: | bulk,surface (float),surface (in situ),sieve,field collection | ||
| Reason for describing collection: | general faunal/floral analysis | ||
| Museum repositories: | USNM | ||
| Collectors: | M. Carrano | Collection dates: | 2004–2010 |
Metadata
| Also known as: | MTC WY-04028 | ||
| Database number: | 137567 | ||
| Authorizer: | M. Carrano, P. Mannion | Enterer: | M. Carrano, P. Mannion, J. Tennant |
| Modifier: | G. Varnham | Research group: | vertebrate |
| Created: | 2012-12-18 03:41:39 | Last modified: | 2022-01-27 06:41:10 |
| Access level: | the public | Released: | 2012-12-18 03:41:39 |
| Creative Commons license: | CC BY | ||
Reference information
Primary reference:
| 44000. | 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] |
Secondary references:
| 55183 | R. L. Cifelli and B. M. Davis. 2015. Tribosphenic mammals from the Lower Cretaceous Cloverly Formation of Montana and Wyoming. Journal of Vertebrate Paleontology 35(3):e920848:1-18 [P. Mannion/J. Tennant/P. Mannion] | |
| 79303 | M. D. D’Emic, B. Z. Foreman, N. A. Jud, B. B. Britt, M. Schmitz and J. L. Crowley. 2019. Chronostratigraphic Revision of the Cloverly Formation (Lower Cretaceous, Western Interior, USA). Bulletin of the Peabody Museum of Natural History 60(1):3-40 [P. Mannion/G. Varnham/G. Varnham] | |
| 59838 | J. P. Tennant, P. D. Mannion, and P. Upchurch. 2016. Evolutionary relationships and systematics of Atoposauridae (Crocodylomorpha: Neosuchia): implications for the rise of Eusuchia. Zoological Journal of the Linnean Society 177:854-936 [P. Mannion/P. Mannion] |