Opal (UW 17-67): Bridgerian, Wyoming

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Mammalia - Primates - Notharctidae
Smilodectes gracilis (Marsh 1871)
1 specimen
    = Smilodectes mcgrewi Gingerich 1979
Gingerich 1979
Mammalia - Groeberida
Peratherium knighti McGrew et al. 1959
1 specimen
    = Herpetotherium knighti McGrew et al. 1959
Krishtalka and Stucky 1983
"Peratherium sp."
see common names

Geography
Country:United States State/province:Wyoming County:Lincoln
Coordinates: 41.8° North, 110.3° West (view map)
Paleocoordinates:45.8° North, 96.5° West
Basis of coordinate:based on nearby landmark
Geographic resolution:small collection
Time
Period:Paleogene Epoch:Eocene
10 m.y. bin:Cenozoic 2
*Period:Tertiary
Key time interval:Bridgerian
Age range of interval:50.30000 - 46.20000 m.y. ago
* legacy (obsolete) database fields
Stratigraphy
Formation:Bridger
Local section:Bridg Local bed:3
Local order:bottom to top
Stratigraphic resolution:bed
Lithology and environment
Primary lithology: tuff
Lithology description: white tuff bed... typically varies between 3 to 8 feet in thickness... very fine-grained and highly altered and in places interbedded in the tuff are laminated siltstones
Environment:fluvial indet.
Taphonomy
Modes of preservation:body
Collection methods and comments
Collection size:2 specimens
Museum repositories:UW
Metadata
Database number:16370
Authorizer:J. Alroy Enterer:J. Alroy
Modifier:J. Alroy Research group:vertebrate
Created:1999-09-21 00:00:00 Last modified:2004-03-09 13:19:53
Access level:the public Released:1999-09-21 00:00:00
Creative Commons license:CC BY
Reference information

Primary reference:

2526.5% 39140P. O. McGrew and R. Sullivan. 1971. The stratigraphy and paleontology of Bridger A. Contributions to Geology, University of Wyoming 9(2):66-85 [J. Alroy/J. Alroy/J. Marcot]

Secondary references:

1638 P. D. Gingerich. 1979. Phylogeny of middle Eocene Adapidae (Mammalia, Primates) in North America: Smilodectes and Notharctus. Journal of Paleontology 53(1):153-163 [J. Alroy/J. Alroy/J. Alroy]
2180 L. Krishtalka and R. K. Stucky. 1983. Revision of the Wind River faunas, early Eocene of central Wyoming. Part 3. Marsupialia. Annals of Carnegie Museum 52(9):205-227 [J. Alroy/J. Alroy/J. Alroy]