Huerfano V (Eocene of the United States)

Also known as William's Creek;

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

• coordinate based on political unit

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

Environment/lithology: terrestrial; red mudstone

• "The fossils were collected from a red-to-pink mudstone which may be correlative with unit 9 of the locality II section. Locality V is separated from locality II by a small pediment-capped divide."

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 16242: 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 - Pangeoemydidae
Echmatemys ? stevensoniana3 Leidy 1870 turtle
Mammalia
 Cimolesta - Esthonychidae
Trogosus grangeri Gazin 1953 tillodont
 Primates - Microsyopidae
Megadelphus lundeliusi1 White 1952 primate
 Primates - Notharctidae
Notharctinae indet.1 Trouessart 1879 primate
 Rodentia - Sciuravidae
Knightomys huerfanensis2 Wood 1962 rodent
 Rodentia - Ischyromyidae
Paramys excavatus Loomis 1907 rodent
"Paramys excavatus gardneri":
 Condylarthra - Hyopsodontidae
Hyopsodus paulus4 Leidy 1870 condylarth
 Perissodactyla - Brontotheriidae
Palaeosyops fontinalis Cope 1873 brontothere
 Perissodactyla - Hyrachyidae
Hyrachyus modestus Leidy 1870 odd-toed ungulate
 Perissodactyla - Palaeotheriidae
Hyracotherium vasacciense Cope 1872 odd-toed ungulate
"Hyracotherium vasacciense vasacciense":
 Ferae - Viverravidae
Viverravus gracilis Marsh 1872 placental
 Artiodactyla - Diacodexeidae
Bunophorus sinclairi5 Guthrie 1966 even-toed ungulate