UCM locality 92177 (Paleocene of the United States)

Also known as USGS loc. D-2001

Where: Colorado (39.3° N, 108.2° W: paleocoordinates 45.1° N, 89.4° W)

• coordinate based on nearby landmark

• small collection-level geographic resolution

When: Atwell Gulch Member (Fort Union Formation), Tiffanian (61.7 - 56.8 Ma)

• 261 m below the upper contact of the Late Paleocene Fort Union Formation (Atwell Gulch Member), with the Early Eocene Wasatch Formation (Molina Member); Lichtig and Lucas (2015) report this site as Clarkforkian.

• bed-level stratigraphic resolution

Environment/lithology: terrestrial; brown, gray sandstone and claystone

• light-grey to light-brown sandstones; olive, purple, dark-reddish-brown claystone; and mudstones that are highly variegated

Size classes: macrofossils, mesofossils

Reposited in the UCM

Primary reference: B. J. Burger and J. G. Honey. 2008. Plesiadapidae (Mammalia, Primates) from the Late Paleocene Fort Union Formation of the Piceance Creek Basin, Colorado. Journal of Vertebrate Paleontology 28(3):816-825 [J. Marcot/J. Marcot/P. Mannion]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 174227: authorized by Philip Mannion, entered by Philip Mannion on 05.11.2015, edited by Patricia Holroyd

Creative Commons license: CC BY (attribution)

Taxonomic list

Reptilia
 Testudines - Kinosternoidea
Cardichelyon cf. rogerwoodi2 Hutchison 2013 mud turtle
Mammalia
 Macroscelidea - Apheliscidae
Phenacodaptes sabulosus1 Jepsen 1930 elephant shrew
Litomylus ishami1 Gazin 1956 elephant shrew
"Haplaletes serior" = Utemylus serior1 Gazin 1956 elephant shrew
Haplomylus simpsoni1 Rose 1981 elephant shrew
 Theriamorpha - Metacheiromyidae
Propalaeanodon sp.1 Rose 1979 placental
 Theriamorpha - Viverravidae
Protictis proteus1, "Protictis cf. schaffi" = Viverravus schaffi1
"Protictis cf. schaffi" = Viverravus schaffi1 Gingerich and Winkler 1985 placental
 Acreodi - Mesonychidae
cf. Sinonyx sp.1 Zhou et al. 1995 condylarth
 Theriamorpha - Phenacodontidae
Phenacodus grangeri1 Simpson 1935 condylarth
Phenacodus magnus1 Thewissen 1990 condylarth
Ectocion medituber1 condylarth
 Procreodi - Arctocyonidae
Thryptacodon australis1, "Arctocyonides mumak" = Arctocyon acrogenius1
Thryptacodon australis1 Simpson 1935 condylarth
"Arctocyonides mumak" = Arctocyon acrogenius1 Gazin 1956 condylarth
 Theriamorpha - Nyctitheriidae
Leptacodon tener1 Matthew and Granger 1921 placental
 Primates - Picrodontidae
Zanycteris honeyi n. sp.1 Burger 2013 primate
UCM87378 - type (right maxilla with upper first and second molars)
 Primates - Plesiadapidae
Plesiadapis fodinatus Jepsen 1930 primate
Nannodectes gazini1 Gingerich 1975 primate
Chiromyoides gigas n. sp. Burger and Honey 2008 primate
 Primates - Carpolestidae
Carpodaptes cygneus1 Russell 1967 primate
 Primates - Paromomyidae
Ignacius sp.1 Matthew and Granger 1921 primate
Ignacius frugivorus1 Matthew and Granger 1921 primate
 Multituberculata - Neoplagiaulacidae
Ectypodus musculus1 Matthew and Granger 1921 multituberculate
 Multituberculata - Ptilodontidae
Ptilodus kummae1 Krause 1977 multituberculate