USGS locality 16214: Late Campanian - Early Maastrichtian, Colorado
collected by R. G. Coffin

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Malacostraca - Decapoda - Homolidae
Homolopsis sp. Bishop and Brannen 1992
Malacostraca - Decapoda - Galatheidae
Eomunidopsis cobbani Bishop 1985
see common names

Geography
Country:United States State/province:Colorado County:Larimer
Coordinates: 40.7° North, 105.0° West (view map)
Paleocoordinates:47.3° North, 75.9° West
Basis of coordinate:stated in text
Geographic resolution:small collection
Time
Period: Cretaceous Epoch: Late Cretaceous
Stage: Campanian - Maastrichtian 10 m.y. bin: Cretaceous 7 - Cretaceous 8
Key time interval: Late Campanian - Early Maastrichtian Ammonoid zone:  Baculites jenseni
Age range of interval: 83.6 - 66 m.y. ago
Stratigraphy
Geological group:Montana Formation:Pierre Shale Member:Richard Sandstone
Stratigraphic resolution:member
Stratigraphy comments: "latest Campanian or earliest Maastrichtian" based on zonal assignment (jenseni zone does span the boundary: see McArthur et al. 2007)
Lithology and environment
Primary lithology: lithified "siliciclastic"
Lithology description: certainly lithified based on preservation of figured specimens
Environment:marine indet.
Taphonomy
Modes of preservation:body
Size of fossils:macrofossils
Collection methods and comments
Collection methods:survey of museum collection
Reason for describing collection:taxonomic analysis
Museum repositories:USGS
Collectors:R. G. Coffin
Taxonomic list comments:crabs are "associated with numerous molluscs and fossil wood fragments" in this area
Metadata
Database number:90157
Authorizer:J. Alroy Enterer:J. Alroy
Modifier:M. Carrano Research group:marine invertebrate
Created:2009-07-09 09:20:51 Last modified:2012-01-31 16:48:20
Access level:the public Released:2009-07-09 09:20:51
Creative Commons license:CC BY
Reference information

Primary reference:
30241. G. A. Bishop. 1985. A new crab, Eomunidopsis cobbani n. sp. (Crustacea, Decapoda), from the Pierre Shale (Early Maastrichtian) of Colorado. Journal of Paleontology 59(3):601-604 [J. Alroy/J. Alroy/J. Alroy]