PBDB Collection

Reservoir Creek Bonanza (Eocene of the United States)

Also known as USGS Loc. D-1198, 1160, 1160N, 1244, 1315, YPM 45 (= 1198B), 45-S (= 1198C), 45-E

Where: Big Horn County, Wyoming (44.5° N, 108.0° W: paleocoordinates 49.2° N, 90.8° W)

• coordinate based on political unit

• small collection-level geographic resolution

When: Willwood Formation, Wasatchian (55.8 - 50.3 Ma)

Environment/lithology: terrestrial

Primary reference: T. M. Bown, K. D. Rose, E. L. Simons and S. L. Wing. 1994. Distribution and stratigraphic correlation of upper Paleocene and lower Eocene fossil mammal and plant localities of the Fort Union, Willwood, and Tatman formations, southern Bighorn Basin, Wyoming. United States Geological Survey Professional Paper 1540:1-103 [J. Alroy/J. Alroy/M. Uhen]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 15576: authorized by John Alroy, entered by John Alroy on 18.02.1993, edited by Patricia Holroyd

Creative Commons license: CC BY (attribution)

Taxonomic list

• Schankler-Wing and Bown sections meet at this locality, so it has a meter level in both sections; see Schankler 1980 for placement of YPM 45 at 530 m in his section
USGS 1244 and part of 1198 are in Washakie County
USGS D-1662 is placed at the 470/550 level by B & R 87

Show authors, comments, and common names

Reptilia
Testudines - Kinosternoidea	Baltemys staurogastros³ Baltemys staurogastros³ Hutchison 1991 mud turtle from UCMP loc V72013 = Yale 45
Mammalia
Theriamorpha - Leptictidae	Palaeictops bicuspis, Didelphodus sp. Palaeictops bicuspis Cope 1880 eutherian see also Rose 1999a for material from USGS D-1198 and Y-45S Didelphodus sp. Cope 1882 eutherian
Theriamorpha - Stylinodontidae	Ectoganus cf. gliriformis Ectoganus cf. gliriformis Cope 1874 taeniodont
Cimolesta - Apatemyidae	Apatemys bellulus, Apatemys rodens Apatemys bellulus Marsh 1872 eutherian Apatemys rodens Troxell 1923 eutherian
Cimolesta - Coryphodontidae	Coryphodon sp. Coryphodon sp. Owen 1845 pantodont
Cimolesta - Esthonychidae	Esthonyx sp. Esthonyx sp. Cope 1874 tillodont presumably sensu stricto
Macroscelidea - Amphilemuridae	Macrocranion nitens Macrocranion nitens Matthew 1918 elephant shrew
Condylarthra - Hyopsodontidae	Hyopsodus sp.¹, Hyopsodus cf. minor Hyopsodus sp.¹ Leidy 1870 condylarth Hyopsodus cf. minor Loomis 1905 condylarth
Theriamorpha - Metacheiromyidae	Palaeanodon ignavus Palaeanodon ignavus Matthew 1918 placental
Creodonta - Hyaenodontidae	"Prototomus vulpecula" = Gazinocyon vulpeculus, Tritemnodon cf. strenuus¹ "Prototomus vulpecula" = Gazinocyon vulpeculus Matthew and Granger 1915 creodont Tritemnodon cf. strenuus¹ Cope 1875 creodont
Creodonta -	Prolimnocyon sp. Prolimnocyon sp. Matthew and Granger 1915 creodont
Creodonta - Oxyaenidae	Oxyaena cf. forcipata Oxyaena cf. forcipata Cope 1874 creodont
Theriamorpha -	Miacis petilus², Vassacyon promicrodon, Vulpavus canavus, Vulpavus australis, Uintacyon cf. asodes Miacis petilus² Gingerich 1983 placental probably includes "M. exiguus" based on discussion of Gingerich 1983 Vassacyon promicrodon Wortman and Matthew 1899 placental Vulpavus canavus Cope 1881 placental Vulpavus australis Matthew and Granger 1915 placental Uintacyon cf. asodes Gazin 1952 placental
Theriamorpha - Viverravidae	Viverravus cf. acutus, Viverravus lutosus, Didymictis protenus⁴ Viverravus cf. acutus Matthew and Granger 1915 placental Viverravus lutosus Gazin 1952 placental Didymictis protenus⁴ Cope 1874 placental
Theriamorpha -	cf. Oodectes sp. cf. Oodectes sp. Wortman 1901 placental
Perissodactyla - Palaeotheriidae	Hyracotherium sp. Hyracotherium sp. Owen 1841 odd-toed ungulate
Perissodactyla - Equidae	Xenicohippus grangeri Xenicohippus grangeri Bown and Kihm 1981 horse
Perissodactyla -	cf. Homogalax sp., Heptodon calciculus cf. Homogalax sp. Hay 1899 odd-toed ungulate Heptodon calciculus Cope 1880 odd-toed ungulate
Theriamorpha - Phenacodontidae	Phenacodus vortmani Phenacodus vortmani Cope 1880 condylarth
Artiodactyla - Diacodexeidae	Bunophorus grangeri⁵, "Diacodexis robustus" = Bunophorus robustus, Diacodexis metsiacus Bunophorus grangeri⁵ Sinclair 1914 even-toed ungulate Y-M45; presumably = "B. sp." "Diacodexis robustus" = Bunophorus robustus Sinclair 1914 even-toed ungulate Diacodexis metsiacus Cope 1882 even-toed ungulate
Procreodi - Arctocyonidae	Thryptacodon cf. antiquus¹, Anacodon ursidens, Chriacus sp. Thryptacodon cf. antiquus¹ Matthew and Granger 1915 condylarth Anacodon ursidens Cope 1882 condylarth Chriacus sp. Cope 1883 condylarth said to be new
Primates - Notharctidae	Cantius abditus n. sp. Cantius abditus n. sp. Gingerich and Simons 1977 primate from YPM 45: Gingerich and Simons 1977
Primates - Omomyidae	Absarokius metoecus n. sp., Anemorhysis pattersoni n. sp. Absarokius metoecus n. sp. Bown and Rose 1987 tarsier USGS D-1198 (type is from D-1198-B), 1662, YPM 45-M, -E, -S: B & R 87 Anemorhysis pattersoni n. sp. Bown and Rose 1984 tarsier described by Bown and Rose 1984; type is from YPM 45-S; includes specimen of "A. musculus" (Szalay 1976 fig. 39); B & R 87: at YPM 45-S, USGS D-1198C
Primates - Microsyopidae	Microsyops latidens Microsyops latidens Cope 1882 primate
Primates - Paromomyidae	Phenacolemurinae indet.¹ Phenacolemurinae indet.¹ Simpson 1955 primate

¹Alroy 2002; ²Heinrich and Rose 1995; ³Hutchison 1991; ⁴Polly 1997; ⁵Stucky and Krishtalka 1990