Flattop Quarry: Bridgerian, Wyoming

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Mammalia - Condylarthra - Hyopsodontidae
Hyopsodus cf. paulus Leidy 1870
Mammalia - Primates - Omomyidae
Gazinius amplus Bown 1979
Mammalia - Primates - Microsyopidae
Microsyops cf. elegans (Marsh 1871)
Mammalia - Primates - Notharctidae
Notharctus sp. Leidy 1870
Mammalia - Rodentia - Paramyidae
Leptotomus sp. Matthew 1910
    = Paramyidae indet. Miller and Gidley 1918
Alroy 2002
form "A"
Mammalia - Rodentia - Ischyromyidae
Pseudotomus sp. Cope 1872
    = Pseudotomus robustus Marsh 1872
Korth 1985
cf. Thisbemys sp. Wood 1959
Thisbemys corrugatus Wood 1959
Mammalia - Acreodi - Hapalodectidae
Hapalorestes lovei n. sp. Gunnell and Gingerich 1996
Gunnell and Gingerich 1996
new specimen
Mammalia - Creodonta - Oxyaenidae
Patriofelis sp. Leidy 1870
Mammalia - Creodonta - Hyaenodontidae
Proviverroides piercei Bown 1982
Mammalia - Homacodontidae
Antiacodon pygmaeus (Cope 1872)
Mammalia - Perissodactyla - Equidae
Orohippus sp. Marsh 1872
Mammalia - Perissodactyla
cf. Helaletes nanus (Marsh 1871)
Mammalia - Perissodactyla - Brontotheriidae
Eotitanops borealis (Cope 1880)
    = Eotitanops minimus Osborn 1919
Gunnell and Yarborough 2000
synonym of Eotitanops gregoryi
may also include Palaeosyops fontinalis
Mammalia - Esthonychidae
Trogosus sp. Leidy 1871
Mammalia - Leptictidae
Palaeictops cf. bridgeri (Simpson 1959)
Mammalia - Multituberculata
? Multituberculata indet. Cope 1884
see common names

Geography
Country:United States State/province:Wyoming County:Hot Springs
Coordinates: 43.7° North, 108.7° West (view map)
Paleocoordinates:47.5° North, 94.4° 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:Aycross
Local section:OwlCr Local bed:1
Local order:bottom to top
Lithology and environment
Environment:terrestrial indet.
Taphonomy
Modes of preservation:body
Collection methods and comments
Reason for describing collection:general faunal/floral analysis
Museum repositories:USGS
Metadata
Also known as:USGS D-1033
Database number:16223
Authorizer:J. Alroy Enterer:J. Alroy
Modifier:J. Alroy Research group:vertebrate
Created:1993-02-18 00:00:00 Last modified:2007-01-01 11:41:25
Access level:the public Released:1993-02-18 00:00:00
Creative Commons license:CC BY
Reference information

Primary reference:
1115. T. M. Bown. 1982. Geology, Paleontology, and Correlation of Eocene Volcaniclastic Rocks, Southeast Absaroka Range, Hot Springs County, Wyoming. United States Geological Survey Professional Paper 1201-A:A1-A75 [J. Alroy/J. Alroy/J. Marcot]

Secondary references:

6294 J. Alroy. 2002. Synonymies and reidentifications of North American fossil mammals. [J. Alroy/J. Alroy/M. Kouvari]
1747 G. F. Gunnell and P. D. Gingerich. 1996. New Hapalodectid Hapalorestes lovei (Mammalia, Mesonychia) from the Early Middle Eocene of Northwestern Wyoming. Contributions from the Museum of Paleontology, University of Michigan 29(15):413-418 [J. Alroy/J. Alroy/P. Mannion]
1748 G. F. Gunnell and V. L. Yarborough. 2000. Brontotheriidae (Perissodactyla) from the late early and middle Eocene (Brigerian), Wasatch and Bridger formations, southern Green River Basin, southwestern Wyoming. Journal of Vertebrate Paleontology 20(2):349-368 [J. Alroy/J. Alroy/J. Marcot]
2106 W. W. Korth. 1985. The Rodents Pseudotomus and Quadratomus and the Content of the Tribe Manitshini (Paramyinae, Ischyromyidae). Journal of Vertebrate Paleontology 5(2):139-152 [J. Alroy/J. Alroy/J. Ju]