Oak Place, Westminster (DMNH Loc. 1513): Late/Upper Maastrichtian, Colorado
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Reptilia
- Dromaeosauridae
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Dromaeosaurus sp.
Matthew and Brown 1922
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1 specimen | |||||||||
| DMNH 44386, tooth | ||||||||||
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Reptilia
- Tyrannosauridae
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Tyrannosauridae indet.
Osborn 1906
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2 specimens | |||||||||
| DMNH 27742, 33302, teeth | ||||||||||
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Tyrannosaurus rex
Osborn 1905
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1 specimen | |||||||||
| DMNH 32825, tooth | ||||||||||
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Reptilia
- Ceratopsidae
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Ceratopsidae indet.
Marsh 1888
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8 specimens | |||||||||
| DMNH 25915, partial skull; DMNH 27743, 27744, 29951, 33301, teeth; DMNH 34291, mandible; DMNH 34391, partial skull; DMNH 34392, horn section | ||||||||||
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Reptilia
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cf. Pachycephalosaurus sp.
Brown and Schlaikjer 1943
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1 specimen | |||||||||
| DMNH 32649, partial skullcap | ||||||||||
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Reptilia
- Hadrosauridae
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Hadrosauridae indet.
Cope 1869
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3 specimens | |||||||||
| DMNH 29475, 32828, 34341, teeth | ||||||||||
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Reptilia
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Ankylosauria indet.
Osborn 1923
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Reptilia
- Nodosauridae
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Edmontonia sp.
Sternberg 1928
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2 specimens | |||||||||
| DMNH 25915, scute; DMNH 44389, tooth | ||||||||||
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Reptilia
- Testudines
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Cryptodira indet.
(Cope 1868)
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Hutchison and Holroyd 2003 | |||||||||
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Reptilia
- Testudines
- Trionychidae
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Trionychidae indet.
Gray 1825
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Hutchison and Holroyd 2003 | |||||||||
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Reptilia
- Testudines
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Plastomeninae indet.
(Hay 1902)
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Hutchison and Holroyd 2003 | |||||||||
| spelled with current rank as Plastomenidae | ||||||||||
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Helopanoplia cf. distincta
Hay 1908
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Hutchison and Holroyd 2003 | |||||||||
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Reptilia
- Testudines
- Nanhsiungchelyidae
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Basilemys cf. sinuosa
Riggs 1906
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Hutchison and Holroyd 2003 | |||||||||
| see common names | ||||||||||
Geography
| Country: | United States | State/province: | Colorado | County: | Arapahoe |
| Coordinates: | 39.8° North, 105.0° West (view map) | ||||
| Paleocoordinates: | 46.5° North, 81.2° West | ||||
| Basis of coordinate: | based on nearby landmark | ||||
| Altitude: | 5300 feet | ||||
| 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: | Denver | ||
| Regional section: | Denver Basin | Regional bed: | 3 |
| 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,mesofossils |
| Preservation of anatomical detail: | good |
| Associated major elements: | some |
| Disassociated major elements: | some |
| Disassociated minor elements: | some |
| Fragmentation: | occasional |
Collection methods and comments
| Collection methods: | salvage,field collection |
| Reason for describing collection: | general faunal/floral analysis |
| Museum repositories: | DMNH |
| Collection method comments: discovered by Alan Nolan | |
Metadata
| Also known as: | Loc. 20 | ||
| Database number: | 49539 | ||
| Authorizer: | M. Carrano, P. Holroyd | Enterer: | M. Carrano, P. Holroyd |
| Modifier: | M. Carrano | Research group: | vertebrate |
| Created: | 2005-04-19 13:08:07 | Last modified: | 2023-01-19 14:19:42 |
| Access level: | the public | Released: | 2005-04-19 13:08:07 |
| Creative Commons license: | CC BY | ||
Reference information
Primary reference:
| 13266. | ETE | K. Carpenter and D. B. Young. 2002. Late Cretaceous dinosaurs from the Denver Basin, Colorado. Rocky Mountain Geology 37(2):237-254 [M. Carrano/M. Carrano/M. Carrano] |
Secondary references:
| 14441 | ETE | P. A. Holroyd and J. H. Hutchison. 2002. Late Cretaceous and Early Paleocene turtle biogeography: new data from the Denver Basin, Colorado. GSA Abstracts with Programs [M. Carrano/M. Carrano/P. Holroyd] |
| 26071 | J. H. Hutchison and P. A. Holroyd. 2003. Late Cretaceous and early Paleocene turtles of the Denver Basin, Colorado. Rocky Mountain Geology 38(1):121-142 [P. Holroyd/P. Holroyd] |