Opal (UM BB-10): Bridgerian, Wyoming

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Mammalia
Stylinodon inexplicatus Schoch and Lucas 1981
1 specimen
synonym of Stylinodon mirus
Mammalia - Rodentia
Rodentia indet. Bowdich 1821
2 specimens
Mammalia - Rodentia - Ischyromyidae
Microparamys cf. minutus (Wilson 1937)
1 specimen
(1 measurement)
Leptotomus parvus Wood 1959
2 specimens
Paramys delicatus Leidy 1871
1 specimen
Mammalia - Rodentia - Sciuravidae
Sciuravus nitidus Marsh 1871
3 specimens
Mammalia - Primates - Microsyopidae
Microsyops cf. elegans (Marsh 1871)
3 specimens
Mammalia - Primates - Notharctidae
Smilodectes mcgrewi Gingerich 1979
1 specimen
Notharctus robinsoni Gingerich 1979
3 specimens
Mammalia - Primates - Omomyidae
Omomys carteri Leidy 1869
2 specimens
Mammalia - Perissodactyla - Hyrachyidae
Hyrachyus sp. Leidy 1871
4 specimens
Mammalia - Perissodactyla - Equidae
Orohippus cf. pumilus (Marsh 1871)
1 specimen
Mammalia - Homacodontidae
Homacodontidae indet. Marsh 1849
1 specimen
Mammalia - Creodonta
Thinocyon cf. velox Marsh 1872
1 specimen
Mammalia - Creodonta - Hyaenodontidae
Sinopa rapax Leidy 1871
1 specimen
Mammalia
Uintacyon vorax Leidy 1872
1 specimen
recombined as Miacis vorax
Mammalia - Metacheiromyidae
Metacheiromys sp. Wortman 1903
1 specimen
Mammalia - Epoicotheriidae
Tetrapassalus sp. Simpson 1959
1 specimen
Mammalia - Condylarthra - Hyopsodontidae
Hyopsodus minusculus Leidy 1873
2 specimens
see common names

Geography
Country:United States State/province:Wyoming County:Lincoln
Coordinates: 41.8° North, 110.7° West (view map)
Paleocoordinates:45.9° North, 96.9° West
Basis of coordinate:based on political unit
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
Lithology and environment
Environment:terrestrial indet.
Taphonomy
Modes of preservation:body
Collection methods and comments
Collection size:29 specimens
Metadata
Database number:16309
Authorizer:J. Alroy Enterer:J. Alroy
Research group:vertebrate
Created:1999-09-21 00:00:00 Last modified:2002-06-03 03:27:41
Access level:the public Released:1999-09-21 00:00:00
Creative Commons license:CC BY
Reference information

Primary reference:

1737. G. F. Gunnell. 1998. Mammalian Fauna From the Lower Bridger Formation (Bridger A, Early Middle Eocene) of the Southern Green River Basin, Wyoming. Contributions from the Museum of Paleontology, University of Michigan 30(3):83-130 [J. Alroy/J. Alroy/J. Marcot]