PBDB

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
Cimolesta - Coryphodontidae	Coryphodon sp. Coryphodon sp. Owen 1845 pantodont
Cimolesta - Esthonychidae	Esthonyx acutidens Esthonyx acutidens Cope 1881 tillodont
Cimolesta - Pantolestidae	Palaeosinopa veterrima, Palaeosinopa didelphoides Palaeosinopa veterrima Matthew 1901 eutherian Palaeosinopa didelphoides Cope 1881 eutherian
Leptictida - Leptictidae	Palaeictops sp., Palaeictops multicuspis Palaeictops sp. Matthew 1899 eutherian Palaeictops multicuspis Granger 1910 eutherian
Primates - Microsyopidae	Microsyops sp., Microsyops cf. scottianus Microsyops sp. Leidy 1872 primate Microsyops cf. scottianus Cope 1881 primate
Primates - Omomyidae	Artimonius witteri, Shoshonius cooperi Artimonius witteri Morris 1954 tarsier Shoshonius cooperi Granger 1910 tarsier
Primates - Notharctidae	Notharctus sp., Notharctus cf. venticolus Notharctus sp. Leidy 1870 primate "A" Notharctus cf. venticolus Osborn 1902 primate
Rodentia - Ischyromyidae	Paramys excavatus, Paramys copei Paramys excavatus Loomis 1907 rodent Paramys copei Loomis 1907 rodent
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
Amblypoda - Uintatheriidae	Bathyopsis fissidens Bathyopsis fissidens Cope 1881 uintathere
Tribosphenida - 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
Tribosphenida - Nyctitheriidae	cf. Plagioctenodon sp. cf. Plagioctenodon sp. Bown 1979 placental
Ferae - Viverravidae	Didymictis altidens, Viverravus lutosus Didymictis altidens Cope 1880 placental Viverravus lutosus Gazin 1952 placental
Ferae -	cf. Vassacyon sp. cf. Vassacyon sp. Matthew 1909 placental spelt "Vassocyon"
Carnivora - Miacidae	Miacidae indet., Miacis cf. latidens, Miacis cf. parvivorus, Miacis cf. exiguus Miacidae indet. Cope 1880 carnivoran Miacis cf. latidens Matthew and Granger 1915 carnivoran Miacis cf. parvivorus Cope 1872 carnivoran Miacis cf. exiguus Matthew and Granger 1915 carnivoran
Carnivora -	Vulpavus canavus Vulpavus canavus Cope 1881 carnivoran
Tribosphenida - Arctocyonidae	Thryptacodon antiquus Thryptacodon antiquus Matthew and Granger 1915 condylarth
Hyaenodonta -	Prolimnocyon antiquus Prolimnocyon antiquus Matthew and Granger 1915 eutherian
Hyaenodonta - Hyaenodontidae	cf. Prototomus sp. cf. Prototomus sp. Cope 1874 eutherian
Hyaenodonta -	Didelphodus cf. altidens Didelphodus cf. altidens Marsh 1872 eutherian
Theriiformes - Peradectidae	Armintodelphys blacki Armintodelphys blacki Krishtalka and Stucky 1983 metatherian
Artiodactyla - Diacodexeidae	Bunophorus sinclairi, Diacodexis secans Bunophorus sinclairi Guthrie 1966 even-toed ungulate Diacodexis secans Cope 1881 even-toed ungulate