UCMP V99370, Just Past Celeste's Microsite: Maastrichtian, Montana
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
unclassified
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Galagodon nordquistae
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Wynd et al. 2020 | 3 specimens | ||||||||
UCMP 287582, 287585, 287586 | ||||||||||
Chondrichthyes
- Hybodontiformes
- Lonchidiidae
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Lonchidion selachos
Estes 1964
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Cook et al. 2014 | 4 specimens | ||||||||
UCMP 197837, fractured tooth; UCMP 197838, fractured tooth; UCMP 197839, fractured tooth; UCMP 287583 | ||||||||||
Chondrichthyes
- Orectolobiformes
- Orectolobidae
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Restesia americana
(Estes 1964)
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Wynd et al. 2020 | 1 specimen | ||||||||
UCMP 287584 | ||||||||||
Acipenseriformes
- Acipenseridae
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Acipenser sp.
Linnaeus 1758
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3 specimens | |||||||||
Amphibia
- Temnospondyli
- Batrachosauroididae
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Opisthotriton kayi
Auffenberg 1961
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8 specimens | |||||||||
Prodesmodon copei
Estes 1964
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1 specimen | |||||||||
Amphibia
- Temnospondyli
- Urodela
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Habrosaurus dilatus
Gilmore 1928
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4 specimens | |||||||||
Scapherpeton tectum
Cope 1876
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5 specimens | |||||||||
Mammalia
- Multituberculata
- Cimolomyidae
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Meniscoessus sp.
Cope 1882
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Donohue et al. 2013 | 1 specimen | ||||||||
Cimolomys sp.
Marsh 1889
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Donohue et al. 2013 | 3 specimens | ||||||||
Mammalia
- Multituberculata
- Cimolodontidae
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Cimolodon sp.
Marsh 1889
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Donohue et al. 2013 | 5 specimens | ||||||||
Mammalia
- Multituberculata
- Neoplagiaulacidae
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Mesodma sp.
Jepsen 1940
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Donohue et al. 2013 | 41 specimens | ||||||||
Reptilia
- Baenidae
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Baenidae indet.
Cope 1882
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19 specimens | |||||||||
Reptilia
- Testudines
- Chelydridae
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Chelydridae indet.
Swainson 1839
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11 specimens | |||||||||
Reptilia
- Testudines
- Adocidae
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Adocus sp.
Cope 1868
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2 specimens | |||||||||
Reptilia
- Testudines
- Trionychidae
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Trionychidae indet.
Gray 1825
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24 specimens | |||||||||
Reptilia
- Ankylosauridae
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Ankylosauridae indet.
Brown 1908
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2 specimens | |||||||||
Reptilia
- Pachycephalosauridae
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Pachycephalosauridae indet.
Sternberg 1945
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5 specimens | |||||||||
Reptilia
- Ceratopsidae
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Ceratopsidae indet.
Marsh 1888
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22 specimens | |||||||||
Reptilia
- Hadrosauridae
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Hadrosauridae indet.
Cope 1869
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18 specimens | |||||||||
Reptilia
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cf. Thescelosaurus sp.
Gilmore 1913
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1 specimen | |||||||||
Reptilia
- Dromaeosauridae
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Richardoestesia isosceles
Sankey 2001
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1 specimen | |||||||||
Dromaeosaurus albertensis
Matthew and Brown 1922
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2 specimens | |||||||||
Reptilia
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Paronychodon lacustris
Cope 1876
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2 specimens | |||||||||
nomen dubium belonging to Paronychodon | ||||||||||
Reptilia
- Tyrannosauridae
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Tyrannosauridae indet.
Osborn 1906
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8 specimens | |||||||||
Reptilia
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Lepidosauria indet.
Haeckel 1866
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16 specimens | |||||||||
Actinopteri
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Holostei informal indet. A
(Müller 1846)
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30 specimens | |||||||||
Holostei informal indet. B
(Müller 1846)
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2 specimens | |||||||||
Actinopteri
- Lepisosteiformes
- Lepisosteidae
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Lepisosteus sp.
Agassiz 1843
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65 specimens | |||||||||
see common names |
Geography
Country: | United States | State/province: | Montana | County: | Garfield |
Coordinates: | 47.6° North, 106.9° West (view map) | ||||
Paleocoordinates: | 54.5° North, 79.4° West | ||||
Basis of coordinate: | estimated from map | ||||
Geographic resolution: | small collection |
Time
Period: | Cretaceous | Epoch: | Late/Upper Cretaceous |
Stage: | Maastrichtian | 10 m.y. bin: | Cretaceous 8 |
Key time interval: | Maastrichtian | ||
Age range of interval: | 72.10000 - 66.00000 m.y. ago |
Stratigraphy
Formation: | Hell Creek | ||||
Stratigraphic resolution: | bed | ||||
Stratigraphy comments: lower part of formation |
Lithology and environment
Primary lithology: | tabular,medium,concretionary,ferruginous,intraclastic sandstone |
Includes fossils? | Y |
Lithology description: "a medium-grained sanstone that fines upward. The fossil horizon is underlain by a clay-domminated mudstone and is capped by a medium-grained sandstone unit. Mudstone clasts, iron concretions, vertebrate fossils, and well-rounded, pebble-sized bone fragments are interbedded within the 40-cm-thick fossil-bearing sandstone. Shell hash is found throughout the unit." Unit is massive. | |
Environment: | channel lag |
Geology comments: "bioclast accumulation in a basal channel lag." |
Taphonomy
Modes of preservation: | body |
Lagerst�tten type: | concentrate |
Degree of concentration: | concentrated |
Size of fossils: | mesofossils |
Disassociated major elements: | many |
Disassociated minor elements: | many |
Size sorting: | medium |
Fragmentation: | occasional |
Spatial resolution: | parautochthonous |
Collection methods and comments
Collection excludes: | some macrofossils |
Collection methods: | bulk,selective quarrying,sieve,field collection |
Reason for describing collection: | taphonomic analysis |
Museum repositories: | UCM |
Taxonomic list comments:"shell hash" not included in taxonomic list |
Metadata
Also known as: | JPC | ||
Database number: | 85499 | ||
Authorizer: | M. Carrano | Enterer: | M. Carrano |
Modifier: | M. Carrano | Research group: | vertebrate |
Created: | 2009-01-02 11:46:34 | Last modified: | 2022-09-29 15:48:19 |
Access level: | the public | Released: | 2009-01-02 11:46:34 |
Creative Commons license: | CC BY |
Reference information
Primary reference:
28887. | ETE | L. E. Wilson. 2008. Comparative taphonomy and paleoecological reconstruction of two microvertebrate accumulations from the Late Cretaceous Hell Creek Formation (Maastrichtian), eastern Montana. Palaios 23:289-297 [M. Carrano/M. Carrano] |
Secondary references:
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] | |
46718 | S. L. Donohue, G. P. Wilson, and B. H. Breithaupt. 2013. Latest Cretaceous multituberculates of the Black Butte Station local fauna (Lance Formation, southwestern Wyoming), with implications for compositional differences among mammalian local faunas of the Western Interior. Journal of Vertebrate Paleontology 33(3):677-695 [R. Benson/R. Benson/M. Carrano] | |
84871 | B. M. Wynd, D. G. DeMar, and G. P. Wilson. 2020. Euselachian diversity through the uppermost Cretaceous Hell Creek Formation of Garfield County, Montana, USA, with implications for the Cretaceous-Paleogene mass extinction in freshwater environments. Cretaceous Research 113:104483 [M. Carrano/M. Carrano] |