Sand Creek, Carter County (CMNH 7541): Maastrichtian, Montana
collected by D. H. Dunkle 1942
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Reptilia
- Tyrannosauridae
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Gorgosaurus lancensis n. sp.
Gilmore 1946
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1 individual | |||||||||
synonym of Tyrannosaurus rex | ||||||||||
CMNH 7541 | ||||||||||
see common names |
Geography
Country: | United States | State/province: | Montana | County: | Carter |
Coordinates: | 45.5° North, 104.2° West (view map) | ||||
Paleocoordinates: | 51.9° North, 77.4° West | ||||
Basis of coordinate: | stated in text | ||||
Altitude: | 1044 meters | ||||
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: described as "Lance Formation, Hell Creek Member" |
Lithology and environment
Primary lithology: | not reported |
Environment: | terrestrial indet. |
Taphonomy
Modes of preservation: | body |
Degree of concentration: | dispersed |
Size of fossils: | macrofossils |
Preservation of anatomical detail: | excellent |
Associated major elements: | all |
Fragmentation: | frequent |
Temporal resolution: | snapshot |
Collection methods and comments
Collection methods: | selective quarrying,mechanical,field collection | ||
Reason for describing collection: | taxonomic analysis | ||
Collectors: | D. H. Dunkle | Collection dates: | 1942 |
Metadata
Also known as: | Nanotyrannus type | ||
Database number: | 54002 | ||
Authorizer: | M. Carrano | Enterer: | M. Carrano |
Modifier: | M. Carrano | Research group: | vertebrate |
Created: | 2005-09-21 07:32:33 | Last modified: | 2009-04-27 11:14:18 |
Access level: | the public | Released: | 2005-09-21 07:32:33 |
Creative Commons license: | CC BY |
Reference information
Primary reference:
14592. | ETE | C. W. Gilmore. 1946. A new carnivorous dinosaur from the Lance Formation of Montana. Smithsonian Miscellaneous Collections 106(13):1-19 [M. Carrano/M. Carrano/M. Carrano] |
Secondary references:
7925 | R. T. Bakker, M. Williams, and P. J. Currie. 1988. Nanotyrannus, a new genus of pygmy tyrannosaur, from the latest Cretaceous of Montana. Hunteria 1(5):1-30 [M. Carrano/M. Carrano/M. Carrano] | |
14112 | ETE | T. D. Carr. 1999. Craniofacial ontogeny in Tyrannosauridae (Dinosauria, Coelurosauria). Journal of Vertebrate Paleontology 19(3):497-520 [M. Carrano/M. Carrano/M. Carrano] |
4205 | 5% 39600 | D. A. Russell. 1970. Tyrannosaurs from the Late Cretaceous of western Canada. National Museum of Natural Sciences, Publications in Paleontology 1:1-34 [M. Carrano/M. Carrano/J. Alroy] |