PTRM V92025, Doaks Butte: Late/Upper Maastrichtian, South Dakota
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Actinopteri
- Lepisosteiformes
- Lepisosteidae
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Lepisosteus occidentalis
(Leidy 1856)
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8 specimens | |||||||||
| original and current combination Lepidotus occidentalis | ||||||||||
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Actinopteri
- Amiiformes
- Amiidae
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Melvius thomasi
Bryant 1987
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1 specimen | |||||||||
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Kindleia fragosa
Jordan 1927
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14 specimens | |||||||||
| recombined as Cyclurus fragosus | ||||||||||
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Reptilia
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Champsosaurus sp.
Cope 1876
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23 specimens | |||||||||
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Lepidosauria indet.
(Haeckel 1866)
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2 specimens | |||||||||
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Paronychodon lacustris
Cope 1876
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1 specimen | |||||||||
| nomen dubium belonging to Paronychodon | ||||||||||
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Reptilia
- Dromaeosauridae
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Richardoestesia isosceles
Sankey 2001
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1 specimen | |||||||||
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Reptilia
- Caenagnathidae
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Caenagnathidae indet.
Sternberg 1940
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1 specimen | |||||||||
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Reptilia
- Tyrannosauridae
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Tyrannosaurus rex
Osborn 1905
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13 specimens | |||||||||
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Reptilia
- Ornithomimidae
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Ornithomimidae indet.
Marsh 1890
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3 specimens | |||||||||
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Reptilia
- Ceratopsidae
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Ceratopsidae indet.
Marsh 1888
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22 specimens | |||||||||
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Reptilia
- Hadrosauridae
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Hadrosaurinae indet.
Lambe 1918
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32 specimens | |||||||||
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Reptilia
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Thescelosaurus neglectus
Gilmore 1913
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3 specimens | |||||||||
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Leidyosuchus sternbergi
(Gilmore 1910)
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22 specimens | |||||||||
| recombined as Borealosuchus sternbergii | ||||||||||
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Brachychampsa montana
Gilmore 1911
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2 specimens | |||||||||
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Reptilia
- Baenidae
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Baenidae indet.
Cope 1882
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1 specimen | |||||||||
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Plesiobaena antiqua
(Lambe 1902)
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1 specimen | |||||||||
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Reptilia
- Testudines
- Nanhsiungchelyidae
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Basilemys sinuosa
Riggs 1906
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1 specimen | |||||||||
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Reptilia
- Testudines
- Trionychidae
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Trionychidae indet.
Gray 1825
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1 specimen | |||||||||
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Reptilia
- Testudines
- Adocidae
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Adocus sp.
Cope 1868
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1 specimen | |||||||||
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Reptilia
- Testudines
- Chelydridae
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Chelydridae indet.
Swainson 1839
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1 specimen | |||||||||
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Reptilia
- Testudines
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Helopanoplia distincta
Hay 1908
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1 specimen | |||||||||
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Reptilia
- Testudines
- Macrobaenidae
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Macrobaenidae indet.
Sukhanov 1964
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1 specimen | |||||||||
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Mammalia
- Multituberculata
- Cimolomyidae
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Meniscoessus sp.
Cope 1882
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1 specimen | |||||||||
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Acipenseriformes
- Acipenseridae
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cf. Acipenser sp.
Linnaeus 1758
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1 specimen | |||||||||
| listed as cf. "Acipenser" | ||||||||||
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Chondrichthyes
- Rajiformes
- Rhinobatidae
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Myledaphus bipartitus
Cope 1876
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57 specimens | |||||||||
| see common names | ||||||||||
Geography
| Country: | United States | State/province: | South Dakota | County: | Harding |
| Coordinates: | 45.9° North, 103.9° West (view map) | ||||
| Paleocoordinates: | 52.2° North, 77.5° 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: | Late/Upper Maastrichtian | ||
| Age range of interval: | 72.10000 - 66.00000 m.y. ago |
Stratigraphy
| Geological group: | Montana | Formation: | Hell Creek | ||
| Local section: | Doaks Butte | Local bed: | 73.00 m | ||
| Local order: | top to bottom | ||||
| Stratigraphic resolution: | bed | ||||
| Stratigraphy comments: datum -73.00, K-T section 9906 | |||||
Lithology and environment
| Primary lithology: | sandstone |
| Includes fossils? | Y |
| Environment: | "channel" |
Taphonomy
| Modes of preservation: | body |
| Degree of concentration: | concentrated |
| Size of fossils: | macrofossils,mesofossils |
| Disassociated major elements: | many |
| Disassociated minor elements: | many |
Collection methods and comments
| Collection methods: | field collection |
| Reason for describing collection: | biostratigraphic analysis |
Metadata
| Database number: | 45390 | ||
| Authorizer: | M. Carrano | Enterer: | M. Carrano |
| Modifier: | G. Varnham | Research group: | vertebrate |
| Created: | 2004-10-20 06:35:31 | Last modified: | 2022-02-01 07:48:01 |
| Access level: | the public | Released: | 2004-10-20 06:35:31 |
| Creative Commons license: | CC BY |
Reference information
Primary reference:
| 11749. | ETE | D. A. Pearson, T. Schaefer, K. R. Johnson, D. J. Nichols, and J. P. Hunter. 2002. Vertebrate biostratigraphy of the Hell Creek Formation in southwestern North Dakota and northwestern South Dakota. In J. H. Hartman, J. R. Johnson, and D. J. Nichols (eds.), The Hell Creek Formation and the Cretaceous-Tertiary Boundary in the Northern Great Plains: An Integrated Continental Record of the End of the Cretaceous, Geological Society of America Special Paper 361:145-167 [M. Carrano/M. Carrano/M. Carrano] |