Dumbbell Hill, Silver Tip Gulch: Lancian, Wyoming
collected by J. Dyer 1947

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
unclassified
Osteichthyes indet. (Huxley 1880)
Dalman 2013
"numerous fish scales"
Mammalia - Alphadontidae
Alphadon cf. marshi Simpson 1927
Mammalia - Multituberculata
Cimexomys sp. Sloan and Van Valen 1965
    = Cimolodonta indet. McKenna 1975
Alroy 2002
Mammalia - Multituberculata - Cimolomyidae
Cimolomys gracilis Marsh 1889
Mammalia - Multituberculata - Neoplagiaulacidae
Mesodma formosa (Marsh 1889)
Mammalia - Multituberculata - Cimolodontidae
Cimolodon nitidus Marsh 1889
Reptilia - Tyrannosauridae
Tyrannosaurus rex Osborn 1905
Dalman 2013 1 specimen
YPM VPPU 016516
Reptilia
Lacertilia indet. (Owen 1842)
Dalman 2013
see common names

Geography
Country:United States State/province:Wyoming County:Park
Coordinates: 44.9° North, 108.9° West (view map)
Paleocoordinates:52.2° North, 83.4° West
Basis of coordinate:stated in text
Geographic resolution:outcrop
Time
Period:Cretaceous Epoch:Late/Upper Cretaceous
Stage:Maastrichtian 10 m.y. bin:Cretaceous 8
*Epoch:Senonian
Key time interval:Lancian
Age range of interval:72.10000 - 66.00000 m.y. ago
* legacy (obsolete) database fields
Stratigraphy
Formation:Lance
Stratigraphic resolution:bed
Stratigraphy comments: "at the base of the Lance Formation in the Little Polecat Anticline, and is located below the Sage Point and the Rock Bench Quarry."
Lithology and environment
Primary lithology:massive sandstone
Environment:terrestrial indet.
Taphonomy
Modes of preservation:body
Size of fossils:macrofossils,mesofossils
Preservation of anatomical detail:good
Fragmentation:occasional
Collection methods and comments
Collection methods:bulk,selective quarrying,surface (in situ),survey of museum collection
Reason for describing collection:general faunal/floral analysis
Museum repositories:YPM
Collectors:J. Dyer Collection dates:1947
Collection method comments: orig. discovered by Husky Oil Company prospecting party
Taxonomic list comments:same as list of Clemens et al. 1979
Metadata
Database number:14526
Authorizer:J. Alroy, M. Carrano Enterer:J. Alroy, M. Carrano
Modifier:M. Carrano Research group:vertebrate
Created:1993-02-18 00:00:00 Last modified:2013-10-24 15:53:45
Access level:the public Released:1993-02-18 00:00:00
Creative Commons license:CC BY
Reference information

Primary reference:

6201. P. D. Gingerich, K. D. Rose, and D. W. Krause. 1980. Early Cenozoic mammalian faunas of the Clark's Fork Basin-Polecat Bench area, northwestern Wyoming. University of Michigan Papers on Paleontology 24:51-68 [J. Alroy/J. Alroy/J. Alroy]

Secondary references:

6294 J. Alroy. 2002. Synonymies and reidentifications of North American fossil mammals. [J. Alroy/J. Alroy/M. Kouvari]
48569 S. G. Dalman. 2013. New examples of Tyrannosaurus rex from the Lance Formation of Wyoming, United States. Bulletin of the Peabody Museum of Natural History 54(2):241-254 [M. Carrano/M. Carrano]