Cow Creek Site 1: Lancian, Wyoming
collected by W. A. Clemens

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Gastropoda - Viviparidae
cf. Viviparus sp. Montfort 1810
Estes 1964
Chondrichthyes - Rajiformes - Rhinobatidae
Myledaphus bipartitus Cope 1876
Estes 1964
Amphibia - Temnospondyli - Urodela
Habrosaurus dilatus Gilmore 1928
Estes 1964 1 specimen
Mammalia - Multituberculata - Cimolodontidae
Cimolodon nitidus Marsh 1889
Mammalia - Multituberculata - Neoplagiaulacidae
Mesodma sp. Jepsen 1940
Mammalia - Gypsonictopidae
Gypsonictops hypoconus Simpson 1927
Clemens 1973
Mammalia - Stagodontidae
Didelphodon vorax Marsh 1889
Clemens 1966
Mammalia - Glasbiidae
Glasbius intricatus Clemens 1966
Clemens 1966
Reptilia
Reptilia indet. Laurenti 1768
Database 2005 1 specimen
Reptilia - Testudines - Trionychidae
Trionychidae indet. Gray 1825
Database 2005 2 specimens
Including UCMP 173446 listed by Horoyd & Hutchison 2002
Reptilia
cf. Dryptosaurus sp. Marsh 1877
Estes 1964
Actinopteri - Lepisosteiformes - Lepisosteidae
Lepisosteus occidentalis (Leidy 1856)
Estes 1964
original and current combination Lepidotus occidentalis
see common names

Geography
Country:United States State/province:Wyoming County:Niobrara
Coordinates: 43.3° North, 104.7° West (view map)
Paleocoordinates:49.7° North, 79.5° West
Basis of coordinate:based on political unit
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
Stratigraphic resolution:bed
Lithology and environment
Primary lithology:"cross stratification" sandstone
Includes fossils?Y
Lithology description: "cross-stratified sandstone"
Environment:terrestrial indet.
Taphonomy
Modes of preservation:body
Degree of concentration:concentrated
Size of fossils:mesofossils
Disassociated major elements:many
Disassociated minor elements:many
Collection methods and comments
Collection methods:field collection
Reason for describing collection:taxonomic analysis
Museum repositories:UCMP
Collectors:W. A. Clemens
Metadata
Also known as:UCMP V-5621
Database number:14522
Authorizer:J. Alroy, M. Carrano Enterer:J. Alroy, M. Carrano
Modifier:M. Carrano Research group:vertebrate
Created:1994-07-26 00:00:00 Last modified:2013-09-17 17:05:02
Access level:the public Released:1994-07-26 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]
1242 W. A. Clemens. 1973. Fossil mammals of the type Lance Formation, Wyoming. Part III. Eutheria and summary. University of California Publications in Geological Sciences 94:1-102 [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]
42536 P. A. Holroyd and J. H. Hutchison. 2002. Patterns of geographic variation in latest Cretaceous vertebrates: evidence from the turtle component. Geological Society of America Special Paper 361:177-190 [R. Benson/R. Benson]