Little Muddy II (UM BB-110): Wasatchian - Bridgerian, Wyoming

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Reptilia - Anguidae
Xestops cf. vagans (Marsh 1872)
Zonneveld et al. 2000
original and current combination Oreosaurus vagans
Reptilia
Amphisbaenia indet. Gray 1844
Zonneveld et al. 2000 1 specimen
UM 101168, fused atlas and axis
cf. Crocodylus affinis Marsh 1871
Zonneveld et al. 2000
nomen dubium belonging to Crocodylus
Mammalia
Peratherium marsupium (Troxell 1923)
(1 measurement)
    = Herpetotherium marsupium Troxell 1923
Alroy 2002
Mammalia - Condylarthra - Hyopsodontidae
Hyopsodus wortmani Osborn 1902
Mammalia - Rodentia - Sciuravidae
Knightomys depressus (Loomis 1907)
Sciuravus nitidus Marsh 1871
Mammalia - Primates - Paromomyidae
Phenacolemur jepseni Simpson 1955
    = Simpsonlemur cf. jepseni Simpson 1955
Alroy 2002
Mammalia - Primates - Notharctidae
Notharctus nunienus (Cope 1881)
    = Cantius nunienus Cope 1881
Zonneveld et al. 2000
"C. frugivorus"
Mammalia - Primates - Omomyidae
Anemorhysis cf. wortmani Bown and Rose 1984
(1 measurement)
Mammalia - Creodonta - Hyaenodontidae
Hyaenodontidae indet. Leidy 1869
Zonneveld et al. 2000
Mammalia
Vulpavus profectus Matthew 1909
    = Vulpavus canavus Cope 1881
Zonneveld et al. 2000
probably also "Miacis latidens"
Mammalia - Viverravidae
Viverravus minutus Wortman 1901
Mammalia - Metacheiromyidae
Palaeanodon sp. Matthew 1918
Mammalia - Diacodexeidae
Diacodexis secans (Cope 1881)
Mammalia - Phenacodontidae
Meniscotherium chamense Cope 1874
Mammalia - Perissodactyla - Palaeotheriidae
Hyracotherium vasacciense (Cope 1872)
Mammalia - Pantolestidae
Palaeosinopa cf. lutreola Matthew 1918
Mammalia - Leptictidae
Palaeictops bicuspis (Cope 1880)
see common names

Geography
Country:United States State/province:Wyoming County:Lincoln
Coordinates: 41.8° North, 110.7° West (view map)
Paleocoordinates:46.5° North, 95.4° 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:Wasatchian - Bridgerian
Age range of interval:54.90000 - 46.20000 m.y. ago
* legacy (obsolete) database fields
Stratigraphy
Formation:Wasatch
Local section:WGRB Local bed:2
Local order:bottom to top
Lithology and environment
Primary lithology: not reported
Environment:terrestrial indet.
Taphonomy
Modes of preservation:body
Size of fossils:macrofossils
Collection methods and comments
Reason for describing collection:taxonomic analysis
Taxonomic list comments:see map of Zonneveld et al. 2000, who repeat the list
"Hyopsodus miticulus" is omitted by Zonneveld et al. 2000
Metadata
Database number:15669
Authorizer:J. Alroy Enterer:J. Alroy
Modifier:G. Varnham Research group:vertebrate
Created:2002-05-15 00:00:00 Last modified:2022-02-15 05:04:22
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]
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]