Twito ranch (DMNH): Late/Upper Maastrichtian, South Dakota
collected by P. Reinheimer 1922
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Reptilia
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Brachychampsa montana
Gilmore 1911
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Carpenter and Lindsey 1980 | |||||||||
| 1922 Reinheimer specimen from the Hell Creek Formation in the same section, township, and range | ||||||||||
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Reptilia
- Nodosauridae
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Edmontonia sp.
Sternberg 1928
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Carpenter and Breithaupt 1986 | 1 individual | ||||||||
| DMNH 468 | ||||||||||
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= Denversaurus schlessmani n. gen., n. sp.
Bakker 1988
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Bakker 1988 | |||||||||
| synonym of Edmontonia longiceps | ||||||||||
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Reptilia
- Hadrosauridae
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Claosaurus sp.
Marsh 1890
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1 specimen | |||||||||
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= Hadrosauridae indet.
Cope 1869
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Lull and Wright 1942 | |||||||||
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Reptilia
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Pachycephalosaurus wyomingensis
(Gilmore 1931)
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Brown and Schlaikjer 1943 | 1 individual | ||||||||
| DMNH 470 | ||||||||||
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Pachycephalosaurus reinheimeri n. sp.
Brown and Schlaikjer 1943
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Brown and Schlaikjer 1943 | 1 individual | ||||||||
| synonym of Pachycephalosaurus wyomingensis | ||||||||||
| DMNH 469 | ||||||||||
| see common names | ||||||||||
Geography
| Country: | United States | State/province: | South Dakota | County: | Corson |
| Coordinates: | 45.7° North, 101.5° West (view map) | ||||
| Paleocoordinates: | 51.4° North, 75.0° West | ||||
| Basis of coordinate: | stated in text | ||||
| Altitude: | 606 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: | Lance |
| Stratigraphic resolution: | bed |
Lithology and environment
| Primary lithology: | not reported |
| Environment: | terrestrial indet. |
Taphonomy
| Modes of preservation: | body |
| Degree of concentration: | dispersed |
| Size of fossils: | macrofossils |
| Disassociated major elements: | all |
| Fragmentation: | frequent |
| Temporal resolution: | snapshot |
| Spatial resolution: | parautochthonous |
Collection methods and comments
| Collection methods: | field collection | ||
| Reason for describing collection: | taxonomic analysis | ||
| Museum repositories: | DMNH | ||
| Collectors: | P. Reinheimer | Collection dates: | 1922 |
| Collection method comments: Collected by Philip Reinheimer, 1922 | |||
Metadata
| Also known as: | Dwito, L&W locality 38b | ||
| Database number: | 47628 | ||
| Authorizer: | M. Carrano, J. Alroy | Enterer: | M. Carrano, J. Alroy |
| Modifier: | G. Varnham | Research group: | vertebrate |
| Created: | 2005-02-28 14:40:24 | Last modified: | 2022-02-03 07:56:43 |
| Access level: | the public | Released: | 2005-02-28 14:40:24 |
| Creative Commons license: | CC BY | ||
Reference information
Primary reference:
| 68340. | Anonymous. 1923. Palaeontology. Annual Report of the Colorado Museum of Natural History for the Year 1922 25-26 [M. Carrano/M. Carrano] |
Secondary references:
| 14876 | ETE | R. T. Bakker. 1988. Review of the Late Cretaceous nodosaurid Dinosauria: Denversaurus schlessmani, a new armor-plated dinosaur from the latest Cretaceous of South Dakota, the last survivor of the nodosaurians, with comments on stegosaur-nodosaur relationships. Hunteria 1(3):1-23 [M. Carrano/M. Carrano] |
| 12773 | ETE | B. Brown and E. M. Schlaikjer. 1943. A study of the troödont dinosaurs with the description of a new genus and four new species. Bulletin of the American Museum of Natural History 82(5):115-150 [M. Carrano/M. Carrano/M. Carrano] |
| 7748 | 5% 18900 | K. Carpenter. 1990. Ankylosaur systematics: example using Panoplosaurus and Edmontonia (Ankylosauria: Nodosauridae). In K. Carpenter & P. J. Currie (ed.), Dinosaur Systematics: Approaches and Perspectives 281-298 [M. Carrano/M. Carrano/M. Carrano] |
| 14877 | ETE | K. Carpenter and B. H. Breithaupt. 1986. Latest Cretaceous occurrence of nodosaurid ankylosaurs (Dinosauria, Ornithischia) in western North America and the gradual extinction of the dinosaurs. Journal of Vertebrate Paleontology 6(3):251-257 [M. Carrano/M. Carrano] |
| 34353 | K. Carpenter and D. Lindsey. 1980. The dentary of Brachychampsa montana Gilmore (Alligatorinae; Crocodylidae), a Late Cretaceous turtle-eating alligator. Journal of Paleontology 54(6):1213-1217 [J. Alroy/J. Alroy] | |
| 12772 | ETE | P. M. Galton and H.-D. Sues. 1983. New data on pachycephalosaurid dinosaurs (Reptilia: Ornithischia) from North America. Canadian Journal of Earth Sciences 20(3):462-472 [M. Carrano/M. Carrano/J. Alroy] |
| 12319 | ETE | R. S. Lull and N. E. Wright. 1942. Hadrosaurian dinosaurs of North America. Geological Society of America Special Paper 40:1-242 [M. Carrano/M. Carrano/M. Carrano] |
| 14897 | ETE | M. K. Vickaryous, T. Maryanska, and D. B. Weishampel. 2004. Ankylosauria. In D. B. Weishampel, P. Dodson, and H. Osmolska (eds.), The Dinosauria (second edition). University of California Press, Berkeley 363-392 [M. Carrano/M. Carrano/M. Carrano] |