PBDB Collection

Buck Spring Dark Red Stratum (Eocene of the United States)

Also known as Guthrie Locality 3; UCM loc. 81029

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

• coordinate based on political unit

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

• said to be Lostcabinian

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 15915: authorized by John Alroy, entered by John Alroy on 18.02.1993

Creative Commons license: CC BY (attribution)

Taxonomic list

• SW 1/4 sec 15 T38N R89W; because county line is half-way through R89W, this is in Natrona County and not Fremont County
"A" horizon of Stucky et al. 1990
"Palaeosyops" borealis and Hyrachyus cf. eximius in Table 4 of Stucky 1984 are from "upper horizons" at Buck Spring, possibly UCM locs. 81030, 031, 032, or 033; note that none of these localities includes more than one reported mammal species

Show authors, comments, and common names

Mammalia
Theriamorpha - Peradectidae	Armintodelphys blacki Armintodelphys blacki Krishtalka and Stucky 1983 marsupial
Condylarthra - Hyopsodontidae	Hyopsodus sp., Hyopsodus walcottianus, Hyopsodus wortmani Hyopsodus sp. Leidy 1870 condylarth possibly H. minusculus Hyopsodus walcottianus Matthew 1915 condylarth Hyopsodus wortmani Osborn 1902 condylarth includes "H. paulus": Redline 1997
Theriamorpha - Viverravidae	Viverravus lutosus, Didymictis altidens Viverravus lutosus Gazin 1952 placental Didymictis altidens Cope 1880 placental
Theriamorpha -	Miacis cf. exiguus, Miacis cf. latidens, Miacis cf. parvivorus, Vulpavus canavus Miacis cf. exiguus Matthew and Granger 1915 placental Miacis cf. latidens Matthew and Granger 1915 placental Miacis cf. parvivorus Cope 1872 placental Vulpavus canavus Cope 1881 placental
Carnivora - Miacidae	Miacidae indet. Miacidae indet. Cope 1880 carnivoran
Theriamorpha -	cf. Vassacyon sp. cf. Vassacyon sp. Matthew 1909 placental spelt "Vassocyon"
Creodonta -	Prolimnocyon antiquus Prolimnocyon antiquus Matthew and Granger 1915 creodont
Creodonta - Hyaenodontidae	cf. Prototomus sp. cf. Prototomus sp. Cope 1874 creodont
Artiodactyla - Diacodexeidae	Diacodexis secans, Bunophorus sinclairi Diacodexis secans Cope 1881 even-toed ungulate Bunophorus sinclairi Guthrie 1966 even-toed ungulate
Procreodi - Arctocyonidae	Thryptacodon antiquus Thryptacodon antiquus Matthew and Granger 1915 condylarth
Theriamorpha - Phenacodontidae	Phenacodus sp., Phenacodus vortmani Phenacodus sp. Cope 1873 condylarth Phenacodus vortmani Cope 1880 condylarth
Placentalia -	Perissodactyla indet. Perissodactyla indet. Owen 1848 odd-toed ungulate
Perissodactyla - Brontotheriidae	Lambdotherium popoagicum Lambdotherium popoagicum Cope 1880 brontothere
Perissodactyla -	Heptodon posticus, Heptodon calciculus Heptodon posticus Cope 1882 odd-toed ungulate Heptodon calciculus Cope 1880 odd-toed ungulate
Perissodactyla - Palaeotheriidae	Hyracotherium vasacciense Hyracotherium vasacciense Cope 1872 odd-toed ungulate
Theriamorpha - Pantolestoidae	Palaeosinopa veterrima, Palaeosinopa didelphoides Palaeosinopa veterrima Matthew 1901 placental Palaeosinopa didelphoides Cope 1881 placental
Theriamorpha - Geolabididae	"Didelphodus cf. altidens" = Centetodon altidens "Didelphodus cf. altidens" = Centetodon altidens Marsh 1872 placental
Theriamorpha - Nyctitheriidae	cf. Plagioctenodon sp. cf. Plagioctenodon sp. Bown 1979 placental
Rodentia - Ischyromyidae	Paramys copei, Paramys excavatus Paramys copei Loomis 1907 rodent Paramys excavatus Loomis 1907 rodent
Primates - Notharctidae	Notharctus sp., Notharctus cf. venticolus Notharctus sp. Leidy 1870 primate "A" Notharctus cf. venticolus Osborn 1902 primate
Primates - Omomyidae	Shoshonius cooperi, "Absarokius witteri" = Artimonius witteri Shoshonius cooperi Granger 1910 tarsier "Absarokius witteri" = Artimonius witteri Morris 1954 tarsier
Primates - Microsyopidae	Microsyops sp., Microsyops cf. scottianus Microsyops sp. Leidy 1872 primate Microsyops cf. scottianus Cope 1881 primate
Cimolesta - Esthonychidae	Esthonyx acutidens Esthonyx acutidens Cope 1881 tillodont
Cimolesta - Coryphodontidae	Coryphodon sp. Coryphodon sp. Owen 1845 pantodont
Theriamorpha - Leptictidae	Palaeictops sp., "Palaeictops multicuspis" = Parictops multicuspis Palaeictops sp. Matthew 1899 eutherian "Palaeictops multicuspis" = Parictops multicuspis Granger 1910 eutherian
Dinocerata - Uintatheriidae	Bathyopsis fissidens Bathyopsis fissidens Cope 1881 uintathere