Denson site, locality 41221: Bridgerian, Colorado
collected by D. Kohls 1996

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Insecta - Orthoptera - Tetrigidae
Eotetrix unicornis Gorochov 2012
2 specimens
USNM Kohls 87677, 87667
Insecta - Orthoptera - Eumastacidae
Eoerianthus eocaenicus Gorochov 2012
3 specimens
USNM Kohls 87687, 87687-AB(x2)
Insecta - Orthoptera - Gryllidae
Gryllinae indet. Laicharting 1781
1 specimen
USNM Kohls 87681
Pronemobius sp. Scudder 1890
1 specimen
USNM Kohls 87684
see common names

Geography
Country:United States State/province:Colorado
Coordinates: 39.5° North, 108.0° West (view map)
Paleocoordinates:46.8° North, 85.1° West (Wright 2013)
Basis of coordinate:based on nearby landmark
Geographic resolution:outcrop
Time
Period: Paleogene Epoch: Eocene
10 m.y. bin: Cenozoic 2
Key time interval: Bridgerian
Age range of interval: 50.5 - 46.2 m.y. ago
Stratigraphy
Formation:Green River
Stratigraphic resolution:group of beds
Lithology and environment
Primary lithology: lithified lime mudstone
Environment:lacustrine - large Tectonic setting:intermontane basin
Geology comments: Laramide-style block faulting
Taphonomy
Modes of preservation:adpression
Size of fossils:macrofossils
Collection methods and comments
Reason for describing collection:taxonomic analysis
Museum repositories:USNM
Collectors:D. Kohls Collection dates:1996
Metadata
Database number:159280
Authorizer:M. Clapham Enterer:M. Clapham
Research group:paleoentomology
Created:2014-07-30 17:01:56 Last modified:2025-02-22 15:12:02
Access level:the public Released:2014-07-30 17:01:56
Creative Commons license:CC0
Reference information

Primary reference:
52087. A. V. Gorochov and C. C. Labandeira. 2012. Eocene Orthoptera from Green River Formation of Wyoming (USA). Russian Entomological Journal 21:357-370 [M. Clapham/M. Clapham/M. Clapham]