Jordan Coulee: Lancian, Montana

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Osteichthyes
Osteichthyes indet. Huxley 1880
Database 2005 3 elements
Mammalia - Multituberculata - Cimolodontidae
Cimolodon nitidus Marsh 1889
Reptilia
Reptilia indet. Laurenti 1768
Database 2005 1 specimen
Reptilia - Chamopsiidae
Leptochamops denticulatus (Gilmore 1928)
Database 2005 2 specimens
Reptilia - Theropoda
Theropoda indet. Marsh 1881
Database 2005 1 specimen
Reptilia - Caenagnathidae
Chirostenotes sp. Gilmore 1924
Database 2005 1 specimen
Reptilia - Dromaeosauridae
Richardoestesia cf. gilmorei Currie et al. 1990
Larson and Currie 2013 1 specimen
UCMP 123543
Reptilia
Thescelosaurus sp. Gilmore 1913
Database 2005 1 specimen
Reptilia - Ceratopsidae
Ceratopsidae indet. Marsh 1888
Database 2005 1 specimen
Reptilia
Brachychampsa montana Gilmore 1911
Database 2005 1 specimen
Leidyosuchus sternbergi (Gilmore 1910)
Database 2005 1 specimen
recombined as Borealosuchus sternbergii
Amphibia - Temnospondyli - Urodela
Urodela indet. (Duméril 1805)
Database 2005 1 specimen
Scapherpeton tectum Cope 1876
Database 2005 2 specimens
Amphibia - Temnospondyli - Batrachosauroididae
Opisthotriton sp. Auffenberg 1961
Database 2005 1 specimen
Actinopteri - Amiiformes - Amiidae
Amia fragosa Jordan 1927
Database 2005 1 element
Actinopteri - Lepisosteiformes - Lepisosteidae
Lepisosteus occidentalis (Leidy 1856)
Database 2005 3 elements
original and current combination Lepidotus occidentalis
Chondrichthyes - Rajiformes - Rhinobatidae
Myledaphus bipartitus Cope 1876
Database 2005 1 element
UCMP 123530, 1 denticle
    = Myledaphus pustulosus Cook et al. 2014
Cook et al. 2014
see common names

Geography
Country:United States State/province:Montana County:Garfield
Coordinates: 47.5° North, 106.9° West (view map)
Paleocoordinates:54.3° North, 80.0° West
Basis of coordinate:unpublished field data
Geographic resolution:small collection
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
Geological group:Montana Formation:Hell Creek Member:Upper
Stratigraphic resolution:bed
Lithology and environment
Primary lithology: sandstone
Includes fossils?Y
Environment:terrestrial indet.
Taphonomy
Modes of preservation:body
Size of fossils:mesofossils
Disassociated major elements:some
Disassociated minor elements:some
Collection methods and comments
Collection methods:surface (float),field collection
Reason for describing collection:taxonomic analysis
Museum repositories:UCMP
Metadata
Also known as:UCMP V-73093
Database number:14574
Authorizer:J. Alroy, M. Carrano Enterer:J. Alroy, M. Carrano
Modifier:M. Carrano Research group:vertebrate
Created:2002-05-15 00:00:00 Last modified:2021-09-02 11:05:07
Access level:the public Released:2002-05-15 00:00:00
Creative Commons license:CC BY
Reference information

Primary reference:
960. J. D. Archibald. 1982. A study of Mammalia and geology across the Cretaceous-Tertiary boundary in Garfield County, Montana. University of California Publications in Geological Sciences 122:1-286 [J. Alroy/J. Alroy/M. Carrano]

Secondary references:

77911 T. D. Cook, M. G. Newbrey, D. B. Brinkman and J. I. Kirkland. 2014. Euselachians from the freshwater deposits of the Hell Creek Formation of Montana. In G. P. Wilson, W. A. Clemens, J. R. Horner, J. H. Hartman (eds.), Through the End of the Cretaceous in the Type Locality of the Hell Creek Formation in Montana and Adjacent Areas. Geological Society of America Special Paper 503:229-246 [M. Carrano/M. Carrano]
13103 U.C.M.P. Database. 2005. UCMP collections database. University of California Museum of Paleontology [M. Carrano/M. Carrano/M. Carrano]
48570 D. W. Larson and P. J. Currie. 2013. Multivariate analyses of small theropod dinosaur teeth and implications for paleoecological turnover through time. PLoS ONE 8(1):e54329:1-14 [M. Carrano/M. Carrano/M. Carrano]