PBDB Collection

Fault (Eocene of the United States)

Also known as B-1; Big Sandy; UW V-570001

Where: Sublette County, Wyoming (42.7° N, 110.1° W: paleocoordinates 46.7° N, 96.1° W)

• coordinate based on political unit

When: Bridger Formation, Bridgerian (50.3 - 46.2 Ma)

Environment/lithology: terrestrial

Primary reference: R. M. West. 1973. Geology and mammalian paleontology of the New Fork-Big Sandy area, Sublette County, Wyoming. Fieldiana: Geology 29 [J. Alroy/J. Alroy]more details

PaleoDB collection 16219: authorized by John Alroy, entered by John Alroy on 18.02.1993

Creative Commons license: CC BY (attribution)

Taxonomic list

• due to errors and omissions in their list, I am unsure if the following "Bridger, Big Sandy" records of Black and Sutton 1984 pertain to Fault: Paramys excavatus Leptotomus parvus "Ischyrotomus oweni"

Show authors, comments, and common names

Mammalia
Tribosphenida - Peradectidae	Peradectes chesteri³ Peradectes chesteri³ Gazin 1952 marsupial b: includes one "innominatum" specimen
Tribosphenida - Herpetotheriidae	"Copedelphys innominata" = Herpetotherium innominatum³, Herpetotherium knighti⁴, Herpetotherium cf. marsupium¹ "Copedelphys innominata" = Herpetotherium innominatum³ Simpson 1928 marsupial Herpetotherium knighti⁴ McGrew et al. 1959 marsupial Herpetotherium cf. marsupium¹ Troxell 1923 marsupial
Creodonta - Hyaenodontidae	Sinopa rapax² Sinopa rapax² Leidy 1871 creodont
Ferae - Viverravidae	Viverravus sp., Viverravus gracilis Viverravus sp. Marsh 1872 placental Viverravus gracilis Marsh 1872 placental
Artiodactyla - Homacodontidae	Antiacodon venustus⁶, Antiacodon pygmaeus Antiacodon venustus⁶ Marsh 1872 even-toed ungulate two of 16 "A. pygmaeus" specimens of West Antiacodon pygmaeus Cope 1872 even-toed ungulate
Perissodactyla - Equidae	Orohippus cf. pumilus Orohippus cf. pumilus Marsh 1871 horse includes "Helohyus cf. plicodon": Stucky 1994 (pers. comm. 5.4.94)
Perissodactyla -	Tapiroidea indet. Tapiroidea indet. Gill 1872 odd-toed ungulate
Perissodactyla - Hyrachyidae	Hyrachyus modestus Hyrachyus modestus Leidy 1870 odd-toed ungulate
Perissodactyla - Brontotheriidae	Palaeosyops fontinalis Palaeosyops fontinalis Cope 1873 brontothere
Soricomorpha - Geolabididae	"Didelphodus altidens" = Centetodon altidens, Marsholestes cf. dasypelix¹ "Didelphodus altidens" = Centetodon altidens Marsh 1872 placental Marsholestes cf. dasypelix¹ Matthew 1909 placental
Soricomorpha - Nyctitheriidae	Nyctitheriidae indet.¹, "Scenopagus priscus" = Nyctitherium priscum Nyctitheriidae indet.¹ Simpson 1928 placental "Scenopagus priscus" = Nyctitherium priscum Marsh 1872 placental
Tribosphenida -	Creotarsinae indet. Creotarsinae indet. Hay 1930 placental
Primates - Notharctidae	Notharctus sp.¹, Smilodectes gracilis Notharctus sp.¹ Leidy 1870 primate Smilodectes gracilis Marsh 1871 primate
Primates - Omomyidae	Anaptomorphus westi⁵, Washakius insignis, Omomys carteri Anaptomorphus westi⁵ Szalay 1976 tarsier Washakius insignis Leidy 1873 tarsier Omomys carteri Leidy 1869 tarsier
Primates - Microsyopidae	Microsyops elegans Microsyops elegans Marsh 1871 primate
Rodentia - Paramyidae	Paramyidae indet.¹ Paramyidae indet.¹ Miller and Gidley 1918 rodent
Rodentia - Reithroparamyidae	Reithroparamys huerfanensis Reithroparamys huerfanensis Wood 1962 rodent
Rodentia - Sciuravidae	Sciuravus nitidus, Taxymys lucaris Sciuravus nitidus Marsh 1871 rodent Taxymys lucaris Marsh 1872 rodent
Rodentia - Ischyromyidae	Microparamys sp., Microparamys minutus, Paramys delicatus, "Acritoparamys wyomingensis" = Paramys wyomingensis¹ Microparamys sp. Wood 1959 rodent "A" Microparamys minutus Wilson 1937 rodent Paramys delicatus Leidy 1871 rodent "Acritoparamys wyomingensis" = Paramys wyomingensis¹ Wood 1959 rodent
Condylarthra - Hyopsodontidae	Hyopsodus minusculus, Hyopsodus paulus Hyopsodus minusculus Leidy 1873 condylarth this or H. paulus includes "Microsus sp.": Stucky 1998 Hyopsodus paulus Leidy 1870 condylarth
Cimolesta - Apatemyidae	Apatemys bellulus Apatemys bellulus Marsh 1872 eutherian
Scenopagus edenensis
-	Scenopagus edenensis Scenopagus edenensis McGrew et al. 1959

¹Alroy 2002; ²Gunnell 1998; ³Krishtalka and Stucky 1983; ⁴Krishtalka and Stucky 1983; ⁵Szalay 1976; ⁶Walsh 2000