La Barge (Eocene of the United States)

Also known as Tulsa

Where: Sublette County, Wyoming (42.7° N, 110.1° W: paleocoordinates 47.7° N, 93.5° W)

• coordinate based on political unit

When: LaBarge Member (Wasatch Formation), Wasatchian (55.8 - 50.3 Ma)

• said to be from the "Knight Mbr." (= LaBarge)

Environment/lithology: terrestrial

Primary reference: C. L. Gazin. 1962. A Further Study Of The Lower Eocene Mammalian Faunas Of Southwestern Wyoming. Smithsonian Miscellaneous Collections 144(1):1-98 [J. Alroy/J. Alroy/J. Marcot]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 15662: authorized by John Alroy, entered by John Alroy on 18.02.1993, edited by Jonathan Marcot

Creative Commons license: CC BY (attribution)

Taxonomic list

• said to underlie the Tipton Shale (=Fontenelle), therefore clearly within the La Barge Mbr. sensu Krishtalka et al. 1987
apparently includes material referred to by Szalay 1969a as "Muddy Creek locality, 12 miles north of Big Piney... Sublette Co."
 Primates - Microsyopidae
Microsyops knightensis1 Gazin 1952 primate
 Primates - Omomyidae
Anemorhysis sublettensis n. sp. Gazin 1952 tarsier
presumably includes tentative record of Gunnell 1995a from "Red Buttes... 12 miles north of Big Piney"
Absarokius abbotti1 Loomis 1906 tarsier
Chlororhysis knightensis n. sp. Gazin 1958 tarsier
Loveina sheai1 Gazin 1962 tarsier
 Primates - Notharctidae
Notharctus cf. venticolus Osborn 1902 primate
Cantius nunienus1 Cope 1881 primate
 Cimolesta - Coryphodontidae
Coryphodon lobatus6 Cope 1877 pantodont
Coryphodon radians Cope 1872 pantodont
 Leptictida - Leptictidae
Palaeictops bicuspis1 Cope 1880 eutherian
 Rodentia - Sciuravidae
Knightomys senior Gazin 1952 rodent
 Rodentia - Ischyromyidae
Paramys excavatus Loomis 1907 rodent
assigned to P. excavatus excavatus by Wood 1962
Paramys copei Loomis 1907 rodent
includes "P. major"; described by Wood 1962 as P. copei copei
 Rodentia - Cylindrodontidae
Dawsonomys woodi Gazin 1961 rodent
 Placentalia -
Perissodactyla indet.1 Owen 1848 odd-toed ungulate
 Perissodactyla - Brontotheriidae
Lambdotherium popoagicum Cope 1880 brontothere
see Bonillas 1936
 Perissodactyla -
Heptodon posticus7 Cope 1882 odd-toed ungulate
Heptodon calciculus1 Cope 1880 odd-toed ungulate
 Perissodactyla - Equidae
Protorohippus cf. venticolum5 Cope 1881 horse
"LaBarge medium"
Minippus index2 Cope 1873 horse
 Creodonta - Oxyaenidae
Ambloctonus major Denison 1938 creodont
Oxyaena lupina4 Cope 1874 creodont
 Ferae - Viverravidae
Didymictis altidens Cope 1880 placental
Viverravus lutosus Gazin 1952 placental
 Ferae -
Uintacyon asodes Gazin 1952 placental
 Carnivora - Miacidae
Miacis sp.1 Cope 1872 carnivoran
Miacis cf. latidens Matthew and Granger 1915 carnivoran
 Carnivora -
Vulpavus australis1 Matthew and Granger 1915 carnivoran
 Ferae - Epoicotheriidae
Tubulodon pearcei1 Gazin 1952 placental
 Taeniodonta -
Stylinodontinae indet. Schlosser 1911 taeniodont
confirmed by Schoch 1986
 Trogontia - Esthonychidae
Esthonyx acutidens Cope 1881 tillodont
 Tribosphenida - Arctocyonidae
Thryptacodon antiquus Matthew and Granger 1915 condylarth
 Ungulata - Hyopsodontidae
Hyopsodus cf. mentalis Cope 1875 condylarth
Hyopsodus wortmani Osborn 1902 condylarth
 Ungulata - Homacodontidae
Hexacodus pelodes Gazin 1952 even-toed ungulate
 Ungulata - Diacodexeidae
Bunophorus cf. macropternus Cope 1882 even-toed ungulate
Diacodexis sp.1 Cope 1882 even-toed ungulate
 Ungulata - Phenacodontidae
Meniscotherium chamense1 Cope 1874 condylarth
 Insectivora - Apatemyidae
Apatemys bellulus1 Marsh 1872 insectivoran
 Acreodi -
Wyolestes dioctes n. sp.3 Gingerich 1982 mesonychian
 Hyaenodonta -
Prolimnocyon antiquus1 Matthew and Granger 1915 eutherian
 Hyaenodonta - Hyaenodontidae
Tritemnodon cf. strenuus1 Cope 1875 eutherian
Gazinocyon cf. vulpeculus1 Matthew and Granger 1915 eutherian
 Theriiformes - Peradectidae
Peradectes chesteri1 Gazin 1952 metatherian
 Theriiformes - Herpetotheriidae
Peratherium edwardi Gazin 1952 marsupial