Image from the Biodiversity Heritage Library.
Contributed by Yale Peabody Museum of Natural History.
| www.biodiversitylibrary.org
Transcription
140
120
100
B
first red
platy concs
80
B
60
.4 . B
40
buttrss
zone
20
0
B
Ardnove bentonite
Byrdsloge section Shaver
Springs Mout zt Stole Line
locality N of Cheyden, Neb.
1971