Image from the Biodiversity Heritage Library.
Contributed by Yale Peabody Museum of Natural History.
| www.biodiversitylibrary.org
Transcription
Colbries dope on Colgate-Cannonball
section N. of Cannonball river, East
of Brien.
Colgate S.S. - 40 feet of typical
Colgate exposed in cut of
Cannonball river,
Colgate-Hell Creek contact, -
Bentonite on top of last
Colgate sand, contains
upright tree stumps.
Lignitic shale, purplish
overlies this setup with
local disconformity.
Hell Creek - includes 'morino'
member near base. This
consists of a buff glauconietic
S.S. of F.H. Type bearing
Halysacrites (Oysters in some