PBDB Collection

SC-67 (Eocene of the United States)

Where: Park County, Wyoming (44.3° N, 109.0° W: paleocoordinates 49.2° N, 91.9° W)

• coordinate based on political unit

• small collection-level geographic resolution

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

Environment/lithology: terrestrial

Reposited in the UMMP

Primary reference: P. D. Gingerich. 1989. New earliest Wasatchian mammalian fauna from the Eocene of northwestern Wyoming: composition and diversity in a rarely sampled high-floodplain assemblage. University of Michigan Papers on Paleontology 28:1-97 [J. Alroy/J. Alroy/J. Alroy]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 15759: authorized by John Alroy, entered by John Alroy on 18.02.1993

Creative Commons license: CC BY (attribution)

Taxonomic list

• supersedes list of Gingerich 1982a
this and other Wa-0 sites are immediately above the Paleocene-Eocene carbon isotope excursion horizon, tentatively dated by Norris and Rohl 1999 at 54.96 Ma on the basis of astronomical tuning of the GMPTS
Wa-0
Chron 24R: Butler et al. 1981

Show authors, comments, and common names

unclassified
-	Pleurocereidae indet. Pleurocereidae indet.
Actinopteri
Lepisosteiformes - Lepisosteidae	Lepisosteus sp. Lepisosteus sp. Agassiz 1843 gar
Amiiformes - Amiidae	Amia sp. Amia sp. Linnaeus 1766 bowfin
Mammalia
Tribosphenida - Peradectidae	Mimoperadectes labrus Mimoperadectes labrus Bown and Rose 1979 marsupial
Taeniodonta - Stylinodontidae	Ectoganus bighornensis Ectoganus bighornensis Schoch 1981 taeniodont
Cimolesta - Coryphodontidae	Coryphodon eocaenus⁷ Coryphodon eocaenus⁷ Owen 1846 pantodont
Cimolesta - Esthonychidae	Esthonyx sp.¹, Esthonyx spatularius, Esthonyx gunnelli¹ Esthonyx sp.¹ Cope 1874 tillodont Esthonyx spatularius Cope 1880 tillodont Esthonyx gunnelli¹ Gingerich 1989 tillodont
Acreodi - Mesonychidae	Dissacus praenuntius Dissacus praenuntius Matthew and Granger 1915 condylarth
Ferae - Metacheiromyidae	Palaeanodon nievelti Palaeanodon nievelti Gingerich 1989 placental
Ferae - Viverravidae	Didymictis proteus⁴, Viverravus politus, Viverravus acutus⁴ Didymictis proteus⁴ Polly 1997 placental Viverravus politus Matthew and Granger 1915 placental confirmed by Polly 1997 Viverravus acutus⁴ Matthew and Granger 1915 placental
Ferae -	"Miacis winkleri" = Gracilocyon winkleri "Miacis winkleri" = Gracilocyon winkleri Gingerich 1983 placental
Creodonta - Oxyaenidae	Dipsalidictis platypus n. sp., Palaeonictis wingi³ Dipsalidictis platypus n. sp. Matthew and Granger 1915 creodont Palaeonictis wingi³ Chester et al. 2010 creodont
Creodonta -	Prolimnocyon eerius Prolimnocyon eerius Gingerich 1989 creodont
Creodonta - Hyaenodontidae	Arfia junnei, Prototomus deimos, Acarictis ryani Arfia junnei Gingerich 1989 creodont Prototomus deimos Gingerich and Deutsch 1989 creodont Acarictis ryani Gingerich and Deutsch 1989 creodont
Procreodi - Arctocyonidae	Chriacus badgleyi, Princetonia yalensis Chriacus badgleyi Gingerich 1989 condylarth Princetonia yalensis Gingerich 1989 condylarth
Perissodactyla - Equidae	"Hyracotherium grangeri" = Sifrhippus grangeri, "Hyracotherium sandrae" = Sifrhippus sandrae "Hyracotherium grangeri" = Sifrhippus grangeri Gingerich 1989 horse "Hyracotherium sandrae" = Sifrhippus sandrae Gingerich 1989 horse
Tribosphenida - Phenacodontidae	Phenacodus vortmani⁶, Copecion davisi, Ectocion parvus, Ectocion osbornianus Phenacodus vortmani⁶ Cope 1880 condylarth Copecion davisi Gingerich 1989 condylarth described by Thewissen 1990 Ectocion parvus Granger 1915 condylarth Ectocion osbornianus Cope 1882 condylarth
Artiodactyla - Diacodexeidae	Diacodexis ilicis Diacodexis ilicis Gingerich 1989 even-toed ungulate
Rodentia - Paramyidae	Paramyidae indet.¹ Paramyidae indet.¹ Miller and Gidley 1918 rodent
Rodentia - Ischyromyidae	Acritoparamys atwateri, Paramys taurus Acritoparamys atwateri Loomis 1907 rodent Paramys taurus Korth 1984 rodent
Primates - Microsyopidae	Arctodontomys wilsoni, cf. Niptomomys sp. Arctodontomys wilsoni Szalay 1969 primate cf. Niptomomys sp. McKenna 1960 primate probably OK because Gingerich would have been aware of Gunnell 1989
Primates - Notharctidae	Cantius torresi Cantius torresi Gingerich 1986 primate
Primates - Paromomyidae	Phenacolemurinae indet.¹ Phenacolemurinae indet.¹ Simpson 1955 primate
Xenarthra - Ernanodontidae	cf. Asiabradypus sp. cf. Asiabradypus sp. Nessov 1987 edentate
Condylarthra - Hyopsodontidae	Hyopsodus loomisi Hyopsodus loomisi McKenna 1960 condylarth
Macroscelidea - Amphilemuridae	Macrocranion junnei n. sp.⁵ Macrocranion junnei n. sp.⁵ Smith et al. 2002 elephant shrew
Multituberculata - Neoplagiaulacidae	Ectypodus tardus Ectypodus tardus Jepsen 1940 multituberculate
Aves
-	Aves indet. Aves indet. Linnaeus 1758 bird
Reptilia
Loricata -	Crocodylia indet., Crocodylia indet.² Crocodylia indet. crocodilian Crocodylia indet.² crocodilian
Crocodylia - Alligatoridae	Allognathosuchus sp. Allognathosuchus sp. Mook 1921 crocodilian
Squamata -	Lacertilia indet. Lacertilia indet. lizard
Squamata - Anguidae	Melanosaurus maximus Melanosaurus maximus Gilmore 1928 squamates
Testudines -	"Chelonia indet." = Testudines "Chelonia indet." = Testudines Batsch 1788 turtle "very large turtles"
Testudines - Geoemydidae	Echmatemys sp. Echmatemys sp. Hay 1906 turtle
Testudines - Pantrionychidae	cf. Plastomenus sp. cf. Plastomenus sp. Cope 1873 turtle
Gastropoda
Stylommatophora - Urocoptidae	Holospira sp. Holospira sp. Martens 1860 slug
Angiospermae
Rosales - Ulmaceae	Celtis phenacodorum Celtis phenacodorum hackberry

¹Alroy 2002; ²Alroy 2007; ³Chester et al. 2010; ⁴Polly 1997; ⁵Smith et al. 2002; ⁶Thewissen 1990; ⁷Uhen and Gingerich 1995