PTRM V86003, Pretty Butte: Late/Upper Maastrichtian, North Dakota
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Mammalia
- Stagodontidae
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Didelphodon vorax
Marsh 1889
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5 specimens | ||||||
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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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Meniscoessus sp.
Cope 1882
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3 specimens | ||||||
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Reptilia
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Brachychampsa montana
Gilmore 1911
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3 specimens | ||||||
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Thoracosaurus neocesariensis
(De Kay 1842)
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2 specimens | ||||||
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Leidyosuchus sternbergi
(Gilmore 1910)
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12 specimens | ||||||
| recombined as Borealosuchus sternbergii | |||||||
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Thescelosaurus neglectus
Gilmore 1913
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1 specimen | ||||||
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Reptilia
- Hadrosauridae
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Hadrosaurinae indet.
Lambe 1918
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10 specimens | ||||||
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Reptilia
- Ceratopsidae
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Ceratopsidae indet.
Marsh 1888
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32 specimens | ||||||
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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
- Ornithomimidae
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Ornithomimidae indet.
Marsh 1890
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1 specimen | ||||||
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Reptilia
- Tyrannosauridae
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Tyrannosaurus rex
Osborn 1905
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4 specimens | ||||||
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Reptilia
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Champsosaurus sp.
Cope 1876
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7 specimens | ||||||
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Lepidosauria indet.
(Haeckel 1866)
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9 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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Reptilia
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Compsemys victa
(Leidy 1856)
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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
- Trionychidae
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Trionychidae indet.
Gray 1825
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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
- Chelydridae
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Chelydridae indet.
Swainson 1839
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1 specimen | ||||||
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Amphibia
- Temnospondyli
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Caudata indet.
Scopoli 1777
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5 specimens | ||||||
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Amphibia
- Temnospondyli
- Urodela
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Scapherpeton tectum
Cope 1876
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7 specimens | ||||||
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Amphibia
- Temnospondyli
- Batrachosauroididae
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Opisthotriton kayi
Auffenberg 1961
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2 specimens | ||||||
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Actinopteri
- Lepisosteiformes
- Lepisosteidae
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Lepisosteus occidentalis
(Leidy 1856)
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25 specimens | ||||||
| original and current combination Lepidotus occidentalis | |||||||
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Actinopteri
- Amiiformes
- Amiidae
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Kindleia fragosa
Jordan 1927
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47 specimens | ||||||
| recombined as Cyclurus fragosus | |||||||
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Chondrichthyes
- Hybodontiformes
- Lonchidiidae
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Lissodus selachos
(Estes 1964)
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1 specimen | ||||||
| original and current combination Lonchidion selachos | |||||||
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Chondrichthyes
- Rajiformes
- Rhinobatidae
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Myledaphus bipartitus
Cope 1876
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6 specimens | ||||||
| see common names | |||||||
Geography
| Country: | United States | State/province: | North Dakota | County: | Slope |
| Coordinates: | 46.4° North, 104.0° West (view map) | ||||
| Paleocoordinates: | 52.6° North, 77.3° West | ||||
| Basis of coordinate: | estimated from map | ||||
| Altitude: | 944 meters | ||||
| 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
| Formation: | Hell Creek | ||||
| Local section: | Pretty Butte | Local bed: | 35.05 m | ||
| Local order: | top to bottom | ||||
| Stratigraphic resolution: | bed | ||||
| Stratigraphy comments: datum -35.05, K-T section 9735 | |||||
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: | 45136 | ||
| Authorizer: | M. Carrano | Enterer: | M. Carrano |
| Modifier: | G. Varnham | Research group: | vertebrate |
| Created: | 2004-10-06 13:39:52 | Last modified: | 2022-02-01 07:43:22 |
| Access level: | the public | Released: | 2004-10-06 13:39:52 |
| 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] |