Premolar Site: Lancian, Wyoming

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Chondrichthyes - Rajiformes - Rhinobatidae
Myledaphus bipartitus Cope 1876
Estes 1964 1 element
Mammalia - Gypsonictopidae
Gypsonictops hypoconus Simpson 1927
Database 2005 2 specimens
Mammalia - Stagodontidae
Didelphodon vorax Marsh 1889
Clemens 1966
Reptilia - Crocodylidae
Crocodylidae indet. Cuvier 1807
Database 2005 1 specimen
Reptilia - Ceratopsidae
cf. Triceratops sp. Marsh 1889
Estes 1964
Reptilia - Hadrosauridae
cf. Anatosaurus sp. Lull and Wright 1942
Estes 1964
synonym of Edmontosaurus
Reptilia - Dromaeosauridae
Dromaeosauridae indet. Colbert and Russell 1969
Database 2005 1 specimen
Reptilia - Ornithomimidae
cf. Ornithomimus sp. Marsh 1890
Estes 1964 1 specimen
Actinopteri - Lepisosteiformes - Lepisosteidae
Lepisosteus occidentalis (Leidy 1856)
Estes 1964 1 element
original and current combination Lepidotus occidentalis
Actinopteri - Amiiformes - Amiidae
Kindleia fragosa Jordan 1927
Estes 1964 1 element
recombined as Cyclurus fragosus
see common names

Geography
Country:United States State/province:Wyoming County:Niobrara
Coordinates: 43.2° North, 104.5° West (view map)
Paleocoordinates:49.7° North, 79.3° 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Basis of coordinate:unpublished field data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:70.60000 - 66.00000 m.y. ago
* legacy (obsolete) database fields
Stratigraphy
Formation:Lance
Lithology and environment
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:field collection
Reason for describing collection:taxonomic analysis
Museum repositories:UCMP
Metadata
Also known as:UCMP V-5625
Database number:14609
Authorizer:J. Alroy, M. Carrano Enterer:J. Alroy, M. Carrano
Modifier:J. Alroy Research group:vertebrate
Created:2002-05-15 00:00:00 Last modified:2008-04-10 13:49:45
Access level:the public Released:2002-05-15 00:00:00
Creative Commons license:CC BY
Reference information

Primary reference:

1239. W. A. Clemens. 1964. Fossil mammals of the type Lance Formation, Wyoming. Part I. Introduction and Marsupialia. University of California Publications in Geological Sciences 48:1-105 [J. Alroy/J. Alroy/J. Alroy]

Secondary references:

1241 W. A. Clemens. 1966. Fossil mammals from the type Lance Formation, Wyoming. Part II. Marsupialia. University of California Publications in Geological Sciences 62:1-122 [J. Alroy/J. Alroy/J. Alroy]
13103 U.C.M.P. Database. 2005. UCMP collections database. University of California Museum of Paleontology [M. Carrano/M. Carrano/M. Carrano]
803 R. Estes. 1964. Fossil vertebrates from the Late Cretaceous Lance Formation, eastern Wyoming. University of California Publications in Geological Sciences 49:1-187 [J. Alroy/M. Sommers/M. Carrano]