Lysite (Eocene of the United States)

Also known as CM 114; "Type Area of the Lysite Member"

Where: Fremont County, Wyoming (43.2° N, 108.2° W: paleocoordinates 48.0° N, 91.4° W)

• coordinate based on political unit

When: Wind River Formation, Wasatchian (55.8 - 50.3 Ma)

Environment/lithology: terrestrial

Primary reference: D. A. Guthrie. 1967. The mammalian fauna of the Lysite Member, Wind River Formation (early Eocene) of Wyoming. Memoirs of the Southern California Academy of Sciences 5:1-53 [J. Alroy/J. Alroy/J. Alroy]more details

PaleoDB collection 15964: authorized by John Alroy, entered by John Alroy on 18.02.1993

Creative Commons license: CC BY (attribution)

Taxonomic list

• from a 10 sq. mi. area about 4 mi. N and NE of Lysite; Cottonwood Creek, Davis Draw, and Bridger Creek drainages (all are tributaries of Badwater Creek)
includes Basal, Middle, and Upper Cliff localities (= locs. 1-5, 6a, 6b, 6c, 7 - 9); CM 114 equals Guthrie's locality 6
interval is >= 40 m (Guthrie), <=80 to 100 m (Korth 1982)
this does NOT include the "Guthrie" series of localities from the Lost Cabin Mbr.
Korth 1982 suggests that Lambdotherium is not from this interval, but Guthrie did not include it in his list in any case
specimen of Bunophorus sinclairi is actually from CM loc. 34: Stucky and Krishtalka 1990
Mammalia
 Dinocerata - Prodinoceratidae
Probathyopsis lysitensis Kelley and Wood 1954 uintathere
 Theriamorpha - Stylinodontidae
Ectoganus gliriformis7 Cope 1874 taeniodont
 Theriamorpha - Leptictidae
Palaeictops cf. bicuspis1 Cope 1880 eutherian
 Rodentia - Ischyromyidae
"Pseudotomus coloradensis" = Mytonomys coloradensis Wood 1962 rodent
ref6294: includes "Leptotomus loomisi"
Thisbemys sp.4 Wood 1959 rodent
Lophiparamys debequensis Wood 1962 rodent
Paramys copei Loomis 1907 rodent
Paramys excavatus Loomis 1907 rodent
includes "Franimys lysitensis"
"Reithroparamys atwateri" = Acritoparamys atwateri Loomis 1907 rodent
 Rodentia - Paramyidae
Franimys ambos4 Korth 1984 rodent
surely includes "F. buccatus" of Black and Sutton 1984
 Rodentia - Sciuravidae
Knightomys depressus, "Dawsonomys minor" = Knightomys minor
Knightomys depressus Loomis 1907 rodent
includes "Microparamys lysitensis"; apparently includes "Franimys lysitensis" of Black and Sutton 1984
"Dawsonomys minor" = Knightomys minor Wood 1965 rodent
 Primates - Microsyopidae
"Cynodontomys latidens" = Microsyops latidens
"Cynodontomys latidens" = Microsyops latidens Cope 1882 primate
 Primates - Notharctidae
Cantius sp.1, "Copelemur feretutus n. sp." = Cantius frugivorus
Cantius sp.1 Simons 1962 primate
"Copelemur feretutus n. sp." = Cantius frugivorus Cope 1875 primate
ref 1675: includes "Pelycodus frugivorus"
 Primates - Paromomyidae
"Phenacolemur citatus" = Simpsonlemur citatus
"Phenacolemur citatus" = Simpsonlemur citatus Matthew 1915 primate
 Primates - Omomyidae
Omomyidae indet.1 Gazin 1958 tarsier
Absarokius abbotti Loomis 1906 tarsier
"Omomys minutus" = Loveina minuta Loomis 1906 tarsier
 Theriamorpha -
Talpavus sullivani n. sp.3 Guthrie 1971 placental
 Placentalia -
Perissodactyla indet.1 Owen 1848 odd-toed ungulate
 Perissodactyla -
Heptodon calciculus Cope 1880 odd-toed ungulate
 Perissodactyla - Palaeotheriidae
Hyracotherium vasacciense Cope 1872 odd-toed ungulate
 Perissodactyla - Equidae
"Hyracotherium index" = Minippus index
"Hyracotherium index" = Minippus index Cope 1873 horse
 Theriamorpha - Phenacodontidae
"Phenacodus brachypternus" = Copecion brachypternus Cope 1882 condylarth
Phenacodus sp.1 Cope 1873 condylarth
Phenacodus vortmani Cope 1880 condylarth
 Artiodactyla - Diacodexeidae
Diacodexis kelleyi5 Krishtalka and Stucky 1985 even-toed ungulate
Bunophorus macropternus Cope 1882 even-toed ungulate
Bunophorus grangeri1 Sinclair 1914 even-toed ungulate
Bunophorus etsagicus Cope 1882 even-toed ungulate
 Procreodi - Arctocyonidae
Anacodon ursidens Cope 1882 condylarth
Thryptacodon antiquus1 Matthew and Granger 1915 condylarth
 Creodonta - Oxyaenidae
Oxyaena forcipata Cope 1874 creodont
 Creodonta -
Prolimnocyon antiquus1 Matthew and Granger 1915 creodont
Didelphodus sp. Cope 1882 creodont
 Creodonta - Hyaenodontidae
Tritemnodon strenua, "Prototomus vulpecula" = Gazinocyon vulpeculus
"Prototomus vulpecula" = Gazinocyon vulpeculus Matthew and Granger 1915 creodont
 Theriamorpha - Viverravidae
Didymictis protenus Cope 1874 placental
confirmed by Polly 1997
Viverravus lutosus Gazin 1952 placental
Viverravus gracilis Marsh 1872 placental
 Theriamorpha -
"Miacis jepseni" = Oodectes jepseni Guthrie 1967 placental
ref 6294: includes "Prolimnocyon iudei"
Miacis petilus2 Gingerich 1983 placental
Miacis latidens Matthew and Granger 1915 placental
Uintacyon sp. Leidy 1873 placental
Uintacyon massetericus Cope 1882 placental
Vulpavus sp. Marsh 1871 placental
Vulpavus cf. canavus Cope 1881 placental
 Theriamorpha - Epoicotheriidae
"Palaeanodon woodi" = Tubulodon woodi
"Palaeanodon woodi" = Tubulodon woodi Guthrie 1967 placental
 Acreodi - Hapalodectidae
Hapalodectes leptognathus Osborn and Wortman 1892 condylarth
 Condylarthra - Hyopsodontidae
Hyopsodus minor6 Loomis 1905 condylarth
presumably "H. miticulus"
Hyopsodus lysitensis6 Gingerich 1974 condylarth
Hyopsodus powellianus Cope 1884 condylarth
confirmed by Redline 1997
 Macroscelidea - Apheliscidae
Apheliscus sp.1 Cope 1875 elephant shrew
 Macroscelidea - Amphilemuridae
"Entomolestes nitens" = Macrocranion nitens
"Entomolestes nitens" = Macrocranion nitens Matthew 1918 elephant shrew
 Cimolesta - Apatemyidae
Apatemys bellulus1 Marsh 1872 eutherian
 Cimolesta - Coryphodontidae
Coryphodon armatus1 Cope 1872 pantodont
 Cimolesta - Esthonychidae
Esthonyx bisulcatus Cope 1874 tillodont
OK according to Gingerich and Gunnell 1979