Newell's Nook (Paleocene of the United States)

Also known as USGS D-2003

Where: Big Horn County, Montana (45.1° N, 106.9° W: paleocoordinates 50.6° N, 86.2° W)

• coordinate based on political unit

• small collection-level geographic resolution

When: Tongue River Member (Fort Union Formation), Tiffanian (61.7 - 56.8 Ma)

Environment/lithology: terrestrial

Reposited in the USGS

Collection methods: bulk, quarrying, sieve

• "a large collection of mammal teeth [collected] by quarrying and screen washing"

Primary reference: L. N. Robinson and J. G. Honey. 1987. Geologic setting of a new Paleocene mammal locality in the northern Powder River basin, Montana. Palaios 2(1):87-90 [J. Alroy/J. Alroy/J. Ju]more details

Purpose of describing collection: taphonomic analysis

PaleoDB collection 15047: authorized by John Alroy, entered by John Alroy on 15.05.2002

Creative Commons license: CC BY (attribution)

Taxonomic list

 Pantodonta -
 Cimolesta - Cimolestidae
Acmeodon sp. Matthew and Granger 1921 eutherian
 Cimolesta - Pantolestidae
Propalaeosinopa sp. Simpson 1927 eutherian
 Cimolesta - Pentacodontidae
cf. Bisonalveus sp. Gazin 1956 eutherian
Aphronorus orieli Gazin 1969 eutherian
 Primates - Plesiadapidae
cf. Nannodectes intermedius Gazin 1971 primate
 Primates - Picrodontidae
Picrodus cf. silberlingi Douglass 1908 primate
 Primates - Carpolestidae
Carpolestidae indet. Simpson 1935 primate
 Primates - Paromomyidae
Paromomyidae indet. Simpson 1940 primate
"Paromomys sp. or Ignacius sp."
 Primates - Palaechthonidae
Palaechthonidae indet. Szalay 1969 primate
 Tribosphenida - Periptychidae
Anisonchus cf. sectorius Cope 1881 condylarth
 Tribosphenida - Phenacodontidae
Ectocion cf. collinus Russell 1929 condylarth
 Macroscelidea - Apheliscidae
Haplaletes sp. Simpson 1935 elephant shrew
Haplaletes cf. disceptatrix Simpson 1935 elephant shrew
Litomylus cf. dissentaneus Simpson 1935 elephant shrew
 Tribosphenida - Arctocyonidae
cf. Chriacus sp. Cope 1883 condylarth
 Theriiformes - Peradectidae
cf. Peradectes sp. Matthew and Granger 1921 metatherian
 Multituberculata - Neoplagiaulacidae
Neoplagiaulacidae indet. Ameghino 1890 multituberculate
Neoplagiaulax sp. Lemoine 1882 multituberculate
 Multituberculata - Ptilodontidae
Ptilodus sp. Cope 1881 multituberculate
 Multituberculata - Cimolodontidae
Anconodon sp. Jepsen 1940 multituberculate