Image from the Biodiversity Heritage Library.
Contributed by Yale Peabody Museum of Natural History.
| www.biodiversitylibrary.org
Transcription
7
#4.
Pierre
SW SW NW 1/4 Sec 10, T 14 N, R 7 E.
Butte Co., 1/2 mile S of Hoover
SF M 2-1
east side of road. duocerasms
horizone Pierre - Collected
#5.
Pierre
NENE NW 1/4 NW 1/2 Sec 26 T 14 N R 7 E
Upper (cluo) concretionary zones
in Pierre. Butte Co.
S. Ford Moreno stream cut
where road crosses cut.
(Cone.. filling samples from here.)
SF M 3-1
Two concretionary layers - Steve
has rough section.
(Collected)
Some concretions have outer shell of
gyp - these usually contain few
or no fossils.