Guthrie Locality 4 (Eocene of the United States)

Also known as CM 90

Where: Natrona County, Wyoming (43.2° N, 107.1° W: paleocoordinates 47.8° N, 90.2° W)

• coordinate based on political unit

• small collection-level geographic resolution

When: Lost Cabin Member (Wind River Formation), Wasatchian (55.8 - 50.3 Ma)

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 15942: authorized by John Alroy, entered by John Alroy on 18.02.1993, edited by Jonathan Marcot

Creative Commons license: CC BY (attribution)

Taxonomic list

• stratigraphic position is somewhat unclear (see p. 284); may be either Lostcabinian or Gardnerbuttean
 Primates - Microsyopidae
Uintasorex cf. parvulus Matthew 1909 primate
Microsyops cf. scottianus Cope 1881 primate
 Primates - Omomyidae
Absarokius abbotti1 Loomis 1906 tarsier
Artimonius witteri1 Morris 1954 tarsier
Shoshonius cooperi Granger 1910 tarsier
Loveina ? zephyri Simpson 1940 tarsier
 Primates - Notharctidae
Notharctus cf. robinsoni Gingerich 1979 primate
 Cimolesta - Pantolestidae
Palaeosinopa didelphoides Cope 1881 eutherian
 Rodentia - Sciuravidae
Knightomys depressus Loomis 1907 rodent
 Rodentia - Ischyromyidae
Mattimys kalicola Matthew 1918 rodent
Paramys excavatus Loomis 1907 rodent
Paramys copei Loomis 1907 rodent
Lophiparamys woodi2 Guthrie 1971 rodent
this is the type locality, not clear why L.woodi is omitted by Stucky
Acritoparamys francesi Wood 1962 rodent
 Placentalia -
Perissodactyla indet.1 Owen 1848 odd-toed ungulate
 Perissodactyla - Brontotheriidae
Lambdotherium popoagicum Cope 1880 brontothere
 Perissodactyla -
Helaletes cf. nanus Marsh 1871 odd-toed ungulate
Heptodon posticus Cope 1882 odd-toed ungulate
Heptodon calciculus1 Cope 1880 odd-toed ungulate
 Perissodactyla - Equidae
Orohippus sp. Marsh 1872 horse
 Creodonta - Oxyaenidae
Oxyaenidae indet. Cope 1877 creodont
 Ferae - Viverravidae
Didymictis altidens Cope 1880 placental
Viverravus cf. gracilis Marsh 1872 placental
 Carnivora - Miacidae
Miacis cf. exiguus Matthew and Granger 1915 carnivoran
 Macroscelidea - Amphilemuridae
Scenopagus sp. McKenna and Simpson 1959 elephant shrew
 Trogontia - Esthonychidae
Esthonyx acutidens Cope 1881 tillodont
 Ungulata - Hyopsodontidae
Hyopsodus wortmani4 Osborn 1902 condylarth
Hyopsodus cf. minusculus Leidy 1873 condylarth
 Ungulata - Diacodexeidae
Bunophorus sinclairi Guthrie 1966 even-toed ungulate
Diacodexis secans3 Cope 1881 even-toed ungulate
"lineage segment Diacodexis secans-secans"
Diacodexis secans3 Cope 1881 even-toed ungulate
 Ungulata - Phenacodontidae
Phenacodus sp.1 Cope 1873 condylarth
Phenacodus vortmani Cope 1880 condylarth
 Hyaenodonta -
Didelphodus cf. altidens Marsh 1872 eutherian
 Theriiformes - Herpetotheriidae
"Copedelphys innominata" = Herpetotherium innominatum1 Simpson 1928 marsupial
Peratherium comstocki Cope 1884 marsupial