Also known as Heart River

Where: Grant County, North Dakota (46.6° N, 101.7° W: paleocoordinates 51.2° N, 80.0° W)

• coordinate based on political unit

• small collection-level geographic resolution

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

• bed-level stratigraphic resolution

Environment/lithology: terrestrial; lithology not reported

Size classes: macrofossils, mesofossils

Collected by Lloyd & Hares

Primary reference: R. M. West. 1970. Tetraclaenodon puercensis (Mammalia: Phenacodontidae), Goler Formation, Paleocene of California, and distribution of the genus. Journal of Paleontology 44(5):851-857 [J. Alroy/J. Alroy/M. Carrano]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 14966: authorized by John Alroy, entered by John Alroy on 15.05.2002, edited by Matthew Carrano

Creative Commons license: CC BY (attribution)