Lance General (UCMP loc. V-65238): Late/Upper Maastrichtian, Wyoming

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Reptilia - Dromaeosauridae
Richardoestesia cf. isosceles Sankey 2001
Larson and Currie 2013 10 specimens
UCMP 214012-3, 214016, 214020-3, 214039, 214043
Reptilia
Compsemys sp. Leidy 1856
1 specimen
UCMP 72899
Reptilia - Testudines
Kinosternoidae indet. Holroyd and Hutchison 2002
1 specimen
UCMP 73039
Reptilia - Testudines - Chelydridae
Chelydridae indet. Swainson 1839
1 specimen
UCMP 125789
Reptilia - Testudines - Adocidae
Adocus sp. Cope 1868
1 specimen
UCMP 173428
Reptilia - Testudines - Nanhsiungchelyidae
Basilemys sp. Hay 1902
1 specimen
UCMP 73088
Reptilia - Testudines
Helopanoplia sp. Hay 1908
1 specimen
UCMP 173379
Plastomeninae informal A
1 specimen
UCMP 173431
    = Derrisemys sterea Hutchison 2009
Hutchison 2009
recombined as Hutchemys sterea
UCMP 173431
Reptilia - Testudines - Trionychidae
Trionychidae indet. Gray 1825
1 specimen
UCMP 73032
Aspiderites sp. (Hay 1904)
1 specimen
original and current combination Aspideretes
UCMP 73042
Reptilia - Testudines
Clemmys backmani Russell 1934
1 specimen
recombined as Osteopygis backmani
UCMP 173427
see common names

Geography
Country:United States State/province:Wyoming County:Niobrara
Coordinates: 43.2° North, 104.6° West (view map)
Paleocoordinates:49.7° North, 79.4° West
Basis of coordinate:estimated from map
Geographic resolution:small collection
Time
Period:Cretaceous Epoch:Late/Upper Cretaceous
Stage:Maastrichtian 10 m.y. bin:Cretaceous 8
Key time interval:Late/Upper Maastrichtian
Age range of interval:70.60000 - 66.00000 m.y. ago
Stratigraphy
Formation:Lance
Local order:top to bottom
Stratigraphic resolution:group of beds
Lithology and environment
Primary lithology: not reported
Environment:terrestrial indet.
Taphonomy
Modes of preservation:body
Degree of concentration:dispersed
Size of fossils:macrofossils,mesofossils
Collection methods and comments
Collection methods:surface (float),field collection
Reason for describing collection:taxonomic analysis
Museum repositories:UCMP
Metadata
Database number:137798
Authorizer:R. Benson, P. Holroyd, M. Carrano Enterer:R. Benson, P. Holroyd, M. Carrano
Modifier:G. Varnham Research group:vertebrate
Created:2012-12-19 20:35:17 Last modified:2022-04-07 06:09:41
Access level:the public Released:2012-12-19 20:35:17
Creative Commons license:CC BY
Reference information

Primary reference:

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]

Secondary references:

58298 J. H. Hutchison. 2009. New soft-shelled turtles (Plastomeninae, Trionychidae, Testudines) from the Cretaceous and Paleocene of North America. PaleoBios 29(2):36-47 [P. Holroyd/P. Holroyd]
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]