Little Muddy VII (UM BB-37): Bridgerian, Wyoming

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Reptilia - Boidae
Calamagras primus Hecht 1959
Zonneveld et al. 2000 1 specimen
UM 101211, two vertebrae
Reptilia - Anguidae
Xestops cf. vagans (Marsh 1872)
Zonneveld et al. 2000
Reptilia
cf. Crocodylus affinis Marsh 1871
Zonneveld et al. 2000
Pristichampsus vorax (Troxell 1925)
Zonneveld et al. 2000
cf. Borealosuchus sp. Brochu 1997
Zonneveld et al. 2000
Reptilia - Testudines
Anosteira ornata Leidy 1871
Zonneveld et al. 2000
Reptilia - Testudines - Geoemydidae
Echmatemys septaria (Cope 1873)
Zonneveld et al. 2000
Mammalia
Peradectes chesteri (Gazin 1952)
1 specimen
Peratherium marsupium (Troxell 1923)
1 specimen
    = Herpetotherium marsupium Troxell 1923
Alroy 2002
Mammalia - Viverravidae
Viverravus minutus Wortman 1901
Gunnell 1998 1 specimen
Mammalia - Metacheiromyidae
Metacheiromys sp. Wortman 1903
1 specimen
Mammalia - Perissodactyla - Hyrachyidae
Hyrachyus sp. Leidy 1871
1 specimen
Mammalia - Nyctitheriidae
Scenopagus curtidens (Matthew 1909)
1 specimen
(1 measurement)
Mammalia - Primates - Omomyidae
Washakius insignis Leidy 1873
2 specimens
see also Gunnell 1995a
Mammalia - Primates - Notharctidae
Notharctus robinsoni Gingerich 1979
2 specimens
Smilodectes mcgrewi Gingerich 1979
1 specimen
Mammalia - Rodentia - Sciuravidae
Sciuravus nitidus Marsh 1871
1 specimen
Mammalia - Apatemyidae
Apatemys bellulus Marsh 1872
1 specimen
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: 50.5 - 46.2 m.y. ago
* legacy (obsolete) database fields
Stratigraphy
Formation:Bridger
Local section:WGRB Local bed:12
Local order:bottom to top
Lithology and environment
Environment:terrestrial indet.
Taphonomy
Modes of preservation:body
Collection methods and comments
Collection size:13 specimens
Taxonomic list comments:NISP based on Gunnell 1998c
see map of Zonneveld et al. 2000, who repeat the list
Metadata
Database number:16273
Authorizer:J. Alroy Enterer:J. Alroy
Research group:vertebrate
Created:2002-05-15 00:00:00 Last modified:2002-06-03 03:27:41
Access level:the public Released:2002-05-15 00:00:00
Creative Commons license:CC BY
Reference information

Primary reference:
1248. W. C. Clyde, J.-P. Zonneveld, J. Stamatakos, G. F. Gunnell, and W. S. Bartels. 1997. Magnetostratigraphy across the Wasatchian-Bridgerian boundary (early to middle Eocene) in the western Green River Basin, Wyoming. Journal of Geology 105:657-669 [J. Alroy/J. Alroy/J. Alroy]

Secondary references:

6294 J. Alroy. 2002. Synonymies and reidentifications of North American fossil mammals. [J. Alroy/J. Alroy/M. Kouvari]
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]
3806 J.-P. Zonneveld, G. F. Gunnell, and W. S. Bartels. 2000. Early Eocene fossil vertebrates from the southwestern Green River Basin, Lincoln and Uinta counties, Wyoming. Journal of Vertebrate Paleontology 20(2):369-386 [J. Alroy/J. Alroy/J. Alroy]