Huerfano III (Eocene of the United States)

Also known as CCC Draw; Milligan's Arroyo

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
 Testudines - Trionychidae
Trionychidae indet.6 Gray 1825 softshell turtle
 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
 Primates - Microsyopidae
Microsyops cf. scottianus4 Cope 1881 primate
Megadelphus lundeliusi1 White 1952 primate
 Primates - Omomyidae
Absarokius metoecus3 Bown and Rose 1987 tarsier
Artimonius australis7 Bown and Rose 1987 tarsier
Uintanius rutherfurdi2 Robinson 1966 tarsier
 Primates - Notharctidae
Notharctinae indet.1 Trouessart 1879 primate
 Rodentia - Sciuravidae
Sciuravidae indet. Miller and Gidley 1918 rodent
Knightomys depressus5 Loomis 1907 rodent
Knightomys huerfanensis1 Wood 1962 rodent
 Rodentia - Ischyromyidae
Quadratomus grandis1 Wood 1962 rodent
Paramys copei Loomis 1907 rodent
Thisbemys perditus5 Wood 1962 rodent
Leptotomus cf. parvus1 Wood 1959 rodent
 Perissodactyla - Palaeotheriidae
Hyracotherium vasacciense Cope 1872 odd-toed ungulate
"Hyracotherium vasacciense vasacciense":
 Tribosphenida - Nyctitheriidae
Nyctitherium cf. velox Marsh 1872 placental
described by Krishtalka 1976b
 Creodonta - Oxyaenidae
Patriofelis ulta Leidy 1870 creodont
 Ferae - Viverravidae
Viverravus gracilis Marsh 1872 placental
 Ferae -
Oodectes herpestoides Wortman 1901 placental
 Macroscelidea - Amphilemuridae
Scenopagus priscus Marsh 1872 elephant shrew
described by Krishtalka 1976a, who disputes assignment of specimen to to Talpavus sp. by Russell et al. 1975
Scenopagus edenensis McGrew et al. 1959 elephant shrew
described by Krishtalka 1976a
 Trogontia - Esthonychidae
Trogosus grangeri Gazin 1953 tillodont
 Ungulata - Hyopsodontidae
Hyopsodus paulus Leidy 1870 condylarth
includes "H. wortmani": Redline 1997
 Ungulata - Uintatheriidae
Bathyopsis fissidens Cope 1881 uintathere
 Ungulata - Homacodontidae
Antiacodon pygmaeus Cope 1872 even-toed ungulate
"Antiacodon pygmaeus huerfanensis":
 Acreodi - Mesonychidae
Mesonyx obtusidens Cope 1871 condylarth