Huerfano III (Eocene of the United States)

Also known as CCC Draw; Milligan's Arroyo; UCM locality 77032

Where: Huerfano County, Colorado (37.8° N, 105.1° W: paleocoordinates 41.3° N, 91.8° W)

• coordinate based on political unit

• small collection-level geographic resolution

When: Huerfano Formation, Bridgerian (50.3 - 46.2 Ma)

Environment/lithology: terrestrial; lithology not reported

Size classes: macrofossils, mesofossils

Primary reference: P. Robinson. 1966. Fossil Mammalia of the Huerfano Formation, Eocene, of Colorado. Peabody Museum of Natural History Bulletin 21:1-95 [J. Alroy/J. Alroy/J. Marcot]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 16241: authorized by John Alroy, entered by John Alroy on 18.02.1993, edited by Patricia Holroyd

Creative Commons license: CC BY (attribution)

Taxonomic list

• Gardnerbuttean
Reptilia
 Testudines - Kinosternoidea
"Baltemys velogastros n. sp." = Baltemys staurogastros6
"Baltemys velogastros n. sp." = Baltemys staurogastros6 Hutchison 1991 mud turtle
 Testudines - Pantrionychidae
? Plastomenus lachrymalis6 Cope 1875 turtle
 Testudines - Trionychidae
Trionychidae indet.6 Gray 1825 softshell turtle
Mammalia
 Cimolesta - Esthonychidae
Trogosus grangeri Gazin 1953 tillodont
 Condylarthra - Hyopsodontidae
Hyopsodus paulus Leidy 1870 condylarth
includes "H. wortmani": Redline 1997
 Creodonta - Oxyaenidae
Patriofelis ulta Leidy 1870 creodont
 Theriamorpha -
Oodectes herpestoides Wortman 1901 placental
 Theriamorpha - Viverravidae
Viverravus gracilis Marsh 1872 placental
 Acreodi - Mesonychidae
Mesonyx obtusidens Cope 1872 condylarth
 Perissodactyla - Palaeotheriidae
Hyracotherium vasacciense Cope 1872 odd-toed ungulate
"Hyracotherium vasacciense vasacciense":
 Artiodactyla - Homacodontidae
Antiacodon pygmaeus Cope 1872 even-toed ungulate
"Antiacodon pygmaeus huerfanensis":
 Theriamorpha - Nyctitheriidae
Nyctitherium cf. velox Marsh 1872 placental
described by Krishtalka 1976b
 Rodentia - Ischyromyidae
Quadratomus grandis1 Wood 1962 rodent
Leptotomus cf. parvus1 Wood 1959 rodent
Thisbemys perditus5 Wood 1962 rodent
Paramys copei Loomis 1907 rodent
 Rodentia - Sciuravidae
Sciuravidae indet. Miller and Gidley 1918 rodent
Knightomys huerfanensis1 Wood 1962 rodent
Knightomys depressus5 Loomis 1907 rodent
 Primates - Omomyidae
Uintanius rutherfurdi2 Robinson 1966 tarsier
Absarokius metoecus3 Bown and Rose 1987 tarsier
Artimonius australis7 Bown and Rose 1987 tarsier
 Primates - Microsyopidae
Megadelphus lundeliusi1 White 1952 primate
Microsyops cf. scottianus4 Cope 1881 primate
 Primates - Notharctidae
Notharctinae indet.1 Trouessart 1879 primate
 Dinocerata - Uintatheriidae
Bathyopsis fissidens Cope 1881 uintathere
Scenopagus priscus
  -
Scenopagus priscus Marsh 1872
described by Krishtalka 1976a, who disputes assignment of specimen to to Talpavus sp. by Russell et al. 1975
Scenopagus edenensis
  -
Scenopagus edenensis McGrew et al. 1959
described by Krishtalka 1976a