Engdahl Anthills 4: Lancian, Montana
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Chondrichthyes
- Hybodontiformes
- Lonchidiidae
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Lonchidion selachos
Estes 1964
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Database 2005 | 1 element | ||||||||
Chondrichthyes
- Rajiformes
- Rhinobatidae
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Myledaphus bipartitus
Cope 1876
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Database 2005 | 2 elements | ||||||||
Chondrichthyes
- Orectolobiformes
- Orectolobidae
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Squatirhina americana
Estes 1964
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Database 2005 | 1 element | ||||||||
recombined as Restesia americana | ||||||||||
UMCP 120269, one complete tooth | ||||||||||
Osteichthyes
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Osteichthyes indet.
Huxley 1880
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Database 2005 | 3 elements | ||||||||
? Osteichthyes indet.
Huxley 1880
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Database 2005 | 1 element | ||||||||
Actinopteri
- Amiiformes
- Amiidae
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Amia uintaensis
(Leidy 1873)
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Database 2005 | 1 element | ||||||||
nomen dubium belonging to Amiinae | ||||||||||
Amia fragosa
Jordan 1927
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Database 2005 | 1 element | ||||||||
Actinopteri
- Lepisosteiformes
- Lepisosteidae
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Lepisosteus occidentalis
(Leidy 1856)
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Database 2005 | 3 elements | ||||||||
original and current combination Lepidotus occidentalis | ||||||||||
Amphibia
- Temnospondyli
- Urodela
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Scapherpeton tectum
Cope 1876
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Database 2005 | 1 specimen | ||||||||
Reptilia
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? Reptilia indet.
Laurenti 1768
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Database 2005 | 1 specimen | ||||||||
Coelurosauria indet.
Huene 1914
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Database 2005 | 1 specimen | ||||||||
Reptilia
- Dromaeosauridae
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Richardoestesia cf. gilmorei
Currie et al. 1990
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Larson and Currie 2013 | 1 specimen | ||||||||
UCMP 120287 | ||||||||||
Reptilia
- Caenagnathidae
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Chirostenotes sp.
Gilmore 1924
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Database 2005 | 1 specimen | ||||||||
Reptilia
- Ceratopsidae
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Ceratopsidae indet.
Marsh 1888
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Database 2005 | 1 specimen | ||||||||
Reptilia
- Hadrosauridae
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Hadrosaurinae indet.
Lambe 1918
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Database 2005 | 1 specimen | ||||||||
Reptilia
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Leidyosuchus sternbergi
(Gilmore 1910)
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Database 2005 | 1 specimen | ||||||||
recombined as Borealosuchus sternbergii | ||||||||||
Brachychampsa montana
Gilmore 1911
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Database 2005 | 1 specimen | ||||||||
Reptilia
- Sauria
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cf. Sauria indet.
MacCartney 1802
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Database 2005 | 1 specimen | ||||||||
Reptilia
- Testudines
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Cryptodira indet.
Cope 1868
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Database 2005 | 1 specimen | ||||||||
Reptilia
- Testudines
- Adocidae
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Adocus sp.
Cope 1868
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Database 2005 | 1 specimen | ||||||||
Reptilia
- Testudines
- Trionychidae
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Trionychidae indet.
Gray 1825
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Database 2005 | 2 specimens | ||||||||
Reptilia
- Testudines
- Nanhsiungchelyidae
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Basilemys sp.
Hay 1902
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Database 2005 | 1 specimen | ||||||||
Reptilia
- Testudines
- Chelydridae
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Chelydridae indet.
Swainson 1839
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Database 2005 | 1 specimen | ||||||||
Reptilia
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Compsemys victa
(Leidy 1856)
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Database 2005 | 1 specimen | ||||||||
Reptilia
- Baenidae
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Baenidae indet.
Cope 1882
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Database 2005 | 1 specimen | ||||||||
Mammalia
- Gypsonictopidae
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Gypsonictops cf. illuminatus
Lillegraven 1969
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Mammalia
- Alphadontidae
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Alphadon marshi
Simpson 1927
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= Alphadon sp.
Simpson 1927
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Alroy 2002 | |||||||||
possibly A. jasoni in light of Johanson 1996b | ||||||||||
Mammalia
- Pediomyidae
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Pediomys elegans
Marsh 1889
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Mammalia
- Glasbiidae
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Glasbius twitchelli
Archibald 1982
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Mammalia
- Multituberculata
- Neoplagiaulacidae
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Mesodma thompsoni
Clemens 1964
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see common names |
Geography
Country: | United States | State/province: | Montana | County: | Garfield |
Coordinates: | 47.6° North, 107.1° West (view map) | ||||
Paleocoordinates: | 54.4° North, 80.2° West | ||||
Basis of coordinate: | unpublished field data | ||||
Geographic resolution: | small collection |
Time
Period: | Cretaceous | Epoch: | Late/Upper Cretaceous |
Stage: | Maastrichtian | 10 m.y. bin: | Cretaceous 8 | *Epoch: | Senonian |
Key time interval: | Lancian | ||
Age range of interval: | 72.10000 - 66.00000 m.y. ago | ||
* legacy (obsolete) database fields |
Stratigraphy
Geological group: | Montana | Formation: | Hell Creek | Member: | Upper |
Stratigraphic resolution: | bed |
Lithology and environment
Primary lithology: | sandstone |
Includes fossils? | Y |
Environment: | terrestrial indet. |
Taphonomy
Modes of preservation: | body |
Size of fossils: | mesofossils |
Disassociated major elements: | some |
Disassociated minor elements: | some |
Collection methods and comments
Collection methods: | bulk,surface (float),anthill,sieve,field collection |
Reason for describing collection: | taxonomic analysis |
Museum repositories: | UCMP |
Metadata
Also known as: | UCMP V-73078 | ||
Database number: | 14536 | ||
Authorizer: | J. Alroy, M. Carrano | Enterer: | J. Alroy, M. Carrano |
Modifier: | M. Carrano | Research group: | vertebrate |
Created: | 1993-02-18 00:00:00 | Last modified: | 2021-09-02 13:15:58 |
Access level: | the public | Released: | 1993-02-18 00:00:00 |
Creative Commons license: | CC BY |
Reference information
Primary reference:
960. | 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] |
Secondary references:
6294 | J. Alroy. 2002. Synonymies and reidentifications of North American fossil mammals. [J. Alroy/J. Alroy/M. Kouvari] | |
77911 | T. D. Cook, M. G. Newbrey, D. B. Brinkman and J. I. Kirkland. 2014. Euselachians from the freshwater deposits of the Hell Creek Formation of Montana. In G. P. Wilson, W. A. Clemens, J. R. Horner, J. H. Hartman (eds.), Through the End of the Cretaceous in the Type Locality of the Hell Creek Formation in Montana and Adjacent Areas. Geological Society of America Special Paper 503:229-246 [M. Carrano/M. Carrano] | |
13103 | U.C.M.P. Database. 2005. UCMP collections database. University of California Museum of Paleontology [M. Carrano/M. Carrano/M. Carrano] | |
48570 | D. W. Larson and P. J. Currie. 2013. Multivariate analyses of small theropod dinosaur teeth and implications for paleoecological turnover through time. PLoS ONE 8(1):e54329:1-14 [M. Carrano/M. Carrano/M. Carrano] |