Denson site 4, locality 41142: Bridgerian, Colorado
collected by D. Kohls 1998

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Insecta - Blattodea - Ectobiidae
Ectobius kohlsi Vršanský et al. 2014
Vršanský et al. 2014 4 specimens
USNM 41142/55491, 57239, 57656, 58123
Insecta - Blattodea - Pseudophyllodromiidae
Cariblattoides labandeirai Vršanský et al. 2012
2 specimens
USNM 542293, 294
Insecta - Orthoptera - Tetrigidae
Eotetrix unicornis Gorochov 2012
Gorochov and Labandeira 2012 2 specimens
USNM Kohls 57885, 55646
Insecta - Orthoptera - Eumastacidae
Eoerianthus eocaenicus Gorochov 2012
Gorochov and Labandeira 2012 1 specimen
USNM Kohls 55307
Insecta - Orthoptera - Trigonidiidae
? Nemobiinae indet. Saussure and Georg 1877
Gorochov and Labandeira 2012 1 specimen
USNM Kohls 57057
Insecta - Orthoptera - Mogoplistidae
Pteromogoplistes sp. Gorochov 2012
Gorochov and Labandeira 2012 2 specimens
USNM Kohls 57348-AB, 55394
Pteromogoplistes ? smithii (Scudder 1890)
Gorochov and Labandeira 2012 4 specimens
USNM Kohls 57647, 58079, 56129-AB, 55365
Insecta - Orthoptera - Gryllidae
? Eneopterinae indet. Saussure 1874
Gorochov and Labandeira 2012 2 specimens
USNM Kohls 57226, 55273-AB
? Pentacentrinae indet. Saussure 1878
Gorochov and Labandeira 2012 1 specimen
USNM Kohls 55166
Gryllinae indet. Laicharting 1781
Gorochov and Labandeira 2012 2 specimens
USNM Kohls 56180/56190, 57562
Pronemobius sp. Scudder 1890
Gorochov and Labandeira 2012 1 specimen
USNM Kohls 56345-AB
Pronemobius ? tertiarius (Scudder 1878)
Gorochov and Labandeira 2012 2 specimens
USNM Kohls 55178-AB, 58141-AB
Eogryllus unicolor Gorochov 2012
Gorochov and Labandeira 2012 4 specimens
USNM Kohls 57653, 55248-AB, 57394, 57246
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:1998
Metadata
Database number:138809
Authorizer:M. Clapham Enterer:M. Clapham
Modifier:M. Clapham Research group:paleoentomology
Created:2013-01-28 04:11:57 Last modified:2025-02-22 15:12:02
Access level:the public Released:2013-01-28 04:11:57
Creative Commons license:CC0
Reference information

Primary reference:
44499. P. Vršanský, L. Vidlička, F. and F. Marsh. 2012. Derived, still living cockroach genus Cariblattoides (Blattida: Blattellidae) from the Eocene sediments of Green River in Colorado, USA. Insect Science 19:143-152 [M. Clapham/M. Clapham/M. Clapham]

Secondary references:

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]
49913 P. Vršanský, R. Oruzinsky, P. Barna, L. Vidlička, and C. C. Labandeira. 2014. Native Ectobius (Blattaria: Ectobiidae) from the early Eocene Green River Formation of Colorado and its reintroduction to North America 49 million years later. Annals of the Entomological Society of America 107:28-36 [M. Clapham/M. Clapham/M. Clapham]