PBDB Collection

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

Show authors, comments, and common names

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

¹Burger 2013; ²Lichtig and Lucas 2015