Where: Carbon County, Montana (45.2° N, 109.0° W: paleocoordinates 51.1° N, 88.4° W)

• coordinate based on political unit

• small collection-level geographic resolution

When: Lebo Member (Fort Union Formation), Ti1 (61.7 - 56.8 Ma)

• in a reversed polarity zone interpreted on the basis of biochronology as chron C26r

• group of beds-level stratigraphic resolution

Environment/lithology: terrestrial

Reposited in the UMMP

Primary reference: R. F. Butler, D. W. Krause, and P. D. Gingerich. 1987. Magnetic polarity stratigraphy and biostratigraphy of middle-late Paleocene continental deposits of south-central Montana. Journal of Geology 95(5):647-657 [J. Alroy/J. Alroy/J. Alroy]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 15026: authorized by John Alroy, entered by John Alroy on 24.07.1993

Creative Commons license: CC BY (attribution)