PBDB Collection

Someday Locality (Eocene of the United States)

Also known as CM 1545; UCM 79040

Where: Natrona County, Wyoming (43.2° N, 107.1° W: paleocoordinates 46.9° N, 92.8° W)

• coordinate based on political unit

• small collection-level geographic resolution

When: Lost Cabin Member (Wind River Formation), Bridgerian (50.3 - 46.2 Ma)

• said to be Gardnerbuttean

Environment/lithology: terrestrial

Primary reference: R. K. Stucky. 1984. Revision of the Wind River faunas, early Eocene of central Wyoming. Part 5. Geology and biostratigraphy of the upper part of the Wind River Formation, northeastern Wind River Basin. Annals of Carnegie Museum 53(9):231-294 [J. Alroy/J. Alroy/J. Alroy]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 16415: authorized by John Alroy, entered by John Alroy on 18.02.1993

Creative Commons license: CC BY (attribution)

Taxonomic list

• NISP 99, excluding generically indeterminate records and Icaronycteris

Show authors, comments, and common names

unclassified
-	cf. Vassocyon sp. cf. Vassocyon sp.
Mammalia
Dinocerata - Uintatheriidae	cf. Bathyopsis sp. cf. Bathyopsis sp. Cope 1881 uintathere
Cimolesta - Esthonychidae	Trogosus sp., Megalesthonyx hopsoni⁴ Trogosus sp. Leidy 1871 tillodont Megalesthonyx hopsoni⁴ Rose 1971 tillodont
Cimolesta - Coryphodontidae	Coryphodon sp. Coryphodon sp. Owen 1845 pantodont
Cimolesta - Apatemyidae	Apatemys cf. bellulus Apatemys cf. bellulus Marsh 1872 eutherian
Leptictida - Leptictidae	Palaeictops cf. bridgeri Palaeictops cf. bridgeri Simpson 1959 eutherian
Creodonta - Hyaenodontidae	Hyaenodontidae indet. Hyaenodontidae indet. Leidy 1869 creodont
Creodonta -	Prolimnocyon antiquus Prolimnocyon antiquus Matthew and Granger 1915 creodont
Ferae - Viverravidae	Viverravus lutosus Viverravus lutosus Gazin 1952 placental
Ferae -	cf. Vassacyon sp.¹, Vulpavus canavus, Miacis cf. parvivorus, Miacis cf. latidens cf. Vassacyon sp.¹ Matthew 1909 placental Vulpavus canavus Cope 1881 placental Miacis cf. parvivorus Cope 1872 placental Miacis cf. latidens Matthew and Granger 1915 placental
Acreodi - Mesonychidae	Mesonychidae indet. Mesonychidae indet. Cope 1875 condylarth
Perissodactyla - Brontotheriidae	Eotitanops borealis¹ Eotitanops borealis¹ Cope 1880 brontothere
Perissodactyla -	Heptodon calciculus¹, Helaletes nanus Heptodon calciculus¹ Cope 1880 odd-toed ungulate Helaletes nanus Marsh 1871 odd-toed ungulate
Perissodactyla - Hyrachyidae	Hyrachyus cf. eximius Hyrachyus cf. eximius Leidy 1871 odd-toed ungulate
Perissodactyla - Equidae	Orohippus sp. Orohippus sp. Marsh 1872 horse
Tribosphenida - Phenacodontidae	Phenacodus sp.¹ Phenacodus sp.¹ Cope 1873 condylarth
Artiodactyla - Homacodontidae	Antiacodon pygmaeus Antiacodon pygmaeus Cope 1872 even-toed ungulate
Artiodactyla - Diacodexeidae	Bunophorus sinclairi³ Bunophorus sinclairi³ Guthrie 1966 even-toed ungulate "B. sp. A"
Tribosphenida - Pantolestoidae	Pantolestes longicaudus Pantolestes longicaudus Cope 1872 placental
Primates - Omomyidae	Shoshonius cooperi, Aycrossia lovei Shoshonius cooperi Granger 1910 tarsier Aycrossia lovei Bown 1979 tarsier
Primates - Microsyopidae	Microsyops cf. scottianus Microsyops cf. scottianus Cope 1881 primate
Primates - Notharctidae	Notharctus cf. robinsoni, cf. Smilodectes sp. Notharctus cf. robinsoni Gingerich 1979 primate cf. Smilodectes sp. Wortman 1903 primate
Rodentia - Sciuravidae	Knightomys depressus, Knightomys senior, Knightomys huerfanensis Knightomys depressus Loomis 1907 rodent Knightomys senior Gazin 1952 rodent Knightomys huerfanensis Wood 1962 rodent
Rodentia - Ischyromyidae	Ischyromyidae indet., Paramys copei, Mattimys kalicola, ? Thisbemys sp. Ischyromyidae indet. Alston 1876 rodent Paramys copei Loomis 1907 rodent Mattimys kalicola Matthew 1918 rodent ? Thisbemys sp. Wood 1959 rodent
Chiroptera - Icaronycteridae	? Icaronycteris sp. ? Icaronycteris sp. Jepsen 1966 bat a bat: said to be new
Condylarthra - Hyopsodontidae	Hyopsodus minusculus², Hyopsodus paulus¹ Hyopsodus minusculus² Leidy 1873 condylarth Hyopsodus paulus¹ Leidy 1870 condylarth
Tribosphenida - Herpetotheriidae	Herpetotherium marsupium¹, "Copedelphys innominata" = Herpetotherium innominatum¹ Herpetotherium marsupium¹ Troxell 1923 marsupial "Copedelphys innominata" = Herpetotherium innominatum¹ Simpson 1928 marsupial
Scenopagus edenensis
-	Scenopagus edenensis Scenopagus edenensis McGrew et al. 1959

¹Alroy 2002; ²Redline 1997; ³Stucky and Krishtalka 1990; ⁴Williamson et al. 1996