X-X Locality (Paleocene of the United States)

Also known as L28

Where: Golden Valley County, North Dakota (46.9° N, 103.9° W: paleocoordinates 51.9° N, 82.2° W)

• coordinate based on political unit

• small collection-level geographic resolution

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

• said to be Tiffanian; lower part of member

Environment/lithology: terrestrial; lithology not reported

Size class: macrofossils

Primary reference: J. P. Hunter. 1999. Proceedings of the North Dakota Academy of Sciences 53:141-144 [J. Alroy/J. Alroy]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 15006: authorized by John Alroy, entered by John Alroy on 21.09.1999

Creative Commons license: CC BY (attribution)

Taxonomic list

• county assignment based on Hunter pers. commun.
said to be Tiffanian, specifically "Ti2"
Mammalia
 Multituberculata - Microcosmodontidae
Microcosmodon sp. Jepsen 1930 multituberculate
 Multituberculata - Neoplagiaulacidae
Neoplagiaulax hunteri Simpson 1936 multituberculate
 Multituberculata - Ptilodontidae
Ptilodus sp. Cope 1881 multituberculate
"C"
 Primates - Plesiadapidae
Plesiadapis anceps Simpson 1936 primate
 Theriamorpha - Phenacodontidae
Ectocion collinus Russell 1929 condylarth
 Cimolesta - Cimolestidae
Paleotomus cf. senior Simpson 1937 eutherian
 Cimolesta - Pantolestidae
Bessoecetor septentrionalis Russell 1929 eutherian
 Theriamorpha - Peradectidae
Peradectes sp. Matthew and Granger 1921 marsupial