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