Field Notebook: SD, WY 1956
Page 33
Image from the Biodiversity Heritage Library. Contributed by Yale Peabody Museum of Natural History. | www.biodiversitylibrary.org
Transcription
Distribution of various fos. concretions needs to be worked out. All layers should be thoroughly checked because fos. distribution is variable. The upper sandy part with red-brown concretions probably = Lentry Dam structure and obscured zone prob. = the Shelby sand at Lentry Spillway