Beaver Creek Valley (YPM): Late/Upper Maastrichtian, Colorado
collected by G. Cannon 1889

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Reptilia - Ornithomimidae
Ornithomimus velox n. gen., n. sp. Marsh 1890
1 individual
YPM 542 + 548
see common names

Geography
Country:United States State/province:Colorado County:Jefferson
Coordinates: 39.7° North, 105.1° West (view map)
Paleocoordinates:46.4° North, 81.3° West
Basis of coordinate:stated in text
Altitude:1706 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
Age estimate:67 to 66.5 Ma (Ar/Ar)
Stratigraphy
Formation:Denver
Stratigraphic resolution:bed
Stratigraphy comments: supposedly same beds as Triceratops alticornis; the "Denver Beds"
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:good
Associated major elements:all
Fragmentation:frequent
Temporal resolution:snapshot
Collection methods and comments
Collection methods:selective quarrying,surface (float),surface (in situ),mechanical,field collection
Reason for describing collection:taxonomic analysis
Museum repositories:YPM
Collectors:G. Cannon Collection dates:1889
Metadata
Also known as:Ornithomimus type, Green Mountain
Database number:49000
Authorizer:M. Carrano Enterer:M. Carrano
Modifier:M. Carrano Research group:vertebrate
Created:2005-04-05 11:43:31 Last modified:2021-09-24 11:16:11
Access level:the public Released:2005-04-05 11:43:31
Creative Commons license:CC BY
Reference information

Primary reference:

12250.ETE O. C. Marsh. 1890. Description of new dinosaurian reptiles. The American Journal of Science, series 3 39:81-86 [M. Carrano/M. Carrano/M. Carrano]

Secondary references:

55543 G. L. Cannon. 1890. Identification of a dinosaur from the Denver Group. Proceedings of the Colorado Scientific Society 3:253-254 [M. Carrano/M. Carrano]
55542 G. L. Cannon. 1906. Notes on some fossils recently discovered near Denver, Colorado. Proceedings of the Colorado Scientific Society 8:194-198 [M. Carrano/M. Carrano]
13266ETE 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]
60140 L. P. A. Claessens and M. A. Loewen. 2016. A redescription of Ornithomimus velox Marsh, 1890 (Dinosauria, Theropoda). Journal of Vertebrate Paleontology 36(1):e1034593:1-15 [M. Carrano/M. Carrano]
78169 O. C. Marsh. 1897. Vertebrate fossils of the Denver Basin. United States Geological Survey Monograph 27:473-527 [M. Carrano/M. Carrano/M. Carrano]
13071ETE H. F. Osborn. 1916. Skeletal adaptations of Ornitholestes, Struthiomimus, Tyrannosaurus. Bulletin of the American Museum of Natural History 35(43):733-771 [M. Carrano/M. Carrano/M. Carrano]
10410 D. A. Russell. 1972. Ostrich dinosaurs from the late Cretaceous of western Canada. Canadian Journal of Earth Sciences 9:375-402 [M. Carrano/M. Carrano/M. Carrano]