Beaver Divide Locality 1: Bridgerian, Wyoming

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Mammalia - Helohyidae
Helohyus sp. Marsh 1872
Mammalia - Creodonta - Hyaenodontidae
Tritemnodon cf. agilis (Marsh 1872)
Mammalia - Rodentia - Sciuravidae
Sciuravidae indet. Miller and Gidley 1918
see common names

Geography
Country:United States State/province:Wyoming County:Fremont
Coordinates: 43.2° North, 108.2° West (view map)
Paleocoordinates:47.0° North, 94.0° 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:50.50000 - 46.20000 m.y. ago
* legacy (obsolete) database fields
Stratigraphy
Formation:Wagon Bed Member:Unit 3
Local section:BvrDv Local bed:1
Local order:bottom to top
Lithology and environment
Environment:terrestrial indet.
Taphonomy
Modes of preservation:body
Collection methods and comments
Museum repositories:USGS
Taxonomic list comments:KA 1021 (Evernden et al. 1964), dated at 49.0 (= 50.3) Ma (KA on biotite) at this exact coordinate; however, dated horizon is at the base of the formation, 60' below Unit 3, and directly overlies the Wind River Fm.; KA 1018 (45.5 = 46.6 Ma, KA on biotite) is from Unit 3 but is about 7 mi NNW of Locality 1; both dates considered reliable by Mauger 1977, and latter seems like a viable calibration point
Metadata
Also known as:USGS D553
Database number:16087
Authorizer:J. Alroy Enterer:J. Alroy
Research group:vertebrate
Created:1994-04-30 00:00:00 Last modified:2002-06-03 03:27:41
Access level:the public Released:1994-04-30 00:00:00
Creative Commons license:CC BY
Reference information

Primary reference:
3479. F. B. Van Houten. 1964. Tertiary geology of the Beaver Rim area, Fremont and Natrona Counties, Wyoming. United States Geological Survey Bulletin 1164:1-99 [J. Alroy/J. Alroy/J. Ju]