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
Gorgosaurus lancensis n. sp. Gilmore 1946
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]
14112ETE T. D. Carr. 1999. Craniofacial ontogeny in Tyrannosauridae (Dinosauria, Coelurosauria). Journal of Vertebrate Paleontology 19(3):497-520 [M. Carrano/M. Carrano/M. Carrano]
42055% 39600D. 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]