Chesterfield coal mine, Sego: Campanian, Utah
collected by R. W. Magraw, E. H. Burdick 1920-1931

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Reptilia
Deinodontidae indet. (Brown 1914)
1 individual
7 consecutive tracks; ID by W. D. Matthew
    = Dinosauria indet. Owen 1842
Strevell 1930
tridactyl tracks, enormous; AMNH 3844
    = Dinosauropodes magrawii n. gen., n. sp. Lull 1932
Strevell 1932
see common names

Geography
Country:United States State/province:Utah County:Grand
Coordinates: 39.0° North, 109.7° West (view map)
Paleocoordinates:46.4° North, 79.4° West
Basis of coordinate:based on nearby landmark
Geographic resolution:small collection
Time
Period:Cretaceous Epoch:Late/Upper Cretaceous
Stage:Campanian 10 m.y. bin:Cretaceous 7
Key time interval:Campanian
Age range of interval:83.60000 - 72.10000 m.y. ago
Stratigraphy
Formation:Price River Member:Nelsen
Stratigraphic resolution:bed
Lithology and environment
Primary lithology: coal
Environment:terrestrial indet.
Taphonomy
Modes of preservation:cast,trace
Size of fossils:macrofossils
Spatial orientation:life position
Preservation of anatomical detail:medium
Associated major elements:some
Disassociated major elements:some
Spatial resolution:autochthonous
Collection methods and comments
Collection methods:selective quarrying,surface (in situ),mechanical,peel or thin section,field collection,observed (not collected)
Reason for describing collection:taxonomic analysis
Museum repositories:AMNH
Collectors:R. W. Magraw, E. H. Burdick Collection dates:1920s-1931
Collection method comments: tracks collected by Pennsylvania State University (1930) and AMNH (1931, McGraw)
Metadata
Also known as:AMNH Loc. 6872, Ballard
Database number:64635
Authorizer:M. Carrano Enterer:M. Carrano
Modifier:M. Carrano Research group:vertebrate
Created:2006-09-11 07:05:53 Last modified:2015-07-29 13:12:11
Access level:the public Released:2006-09-11 07:05:53
Creative Commons license:CC BY
Reference information

Primary reference:

29231.ETE W. Peterson. 1924. Dinosaur tracks in the roofs of coal mines: a strange phenomenon noted in Utah and Colorado. Natural History 24(3):388-391 [M. Carrano/M. Carrano]

Secondary references:

54180 Anonymous. 1931. A dinosaur footprint. Natural History 31:446 [M. Carrano/M. Carrano]
54029 Anonymous. 1937. Dinosaur footprints traced to ancient reptile bones. Science News Letter 32:70-71 [M. Carrano/M. Carrano]
18651ETE B. Brown. 1938. The mystery dinosaur. Natural History 38(3):190-202 [M. Carrano/M. Carrano]
32235 L. Parker and J. Balsley. 1989. Coal mines as localities for studying trace fossils. In D. D. Gillette & M. G. Lockley (ed.), Dinosaur Tracks and Traces, Cambridge University Press 353-359 [R. Butler/R. Butler/M. Carrano]
24152ETE C. N. Strevell. 1930. Dinosaur footprints from Carbon and Grand County, Utah: Strevell Collection, Salt Lake City. 1-9 [M. Carrano/M. Carrano]
55933 C. N. Strevell. 1932. Dinosauropodes. 1-16 [M. Carrano/M. Carrano]