Field Notebook: SD 1940
Page 42
Image from the Biodiversity Heritage Library. Contributed by Yale Peabody Museum of Natural History. | www.biodiversitylibrary.org
Transcription
29 CR1-1 #19 Pierre sh. - Member? Looks like Virgi G Route 73, S bank Cheyenne R West side of road Anoceramus sp Baculites + ootus etc. #19 A About 3 miles W of #19 along S bank of river. Shale bluffs with Baculites + large placenticeras associated. Virgin Creele type of lithology, much bentonite + 'sulphur' streaks. Chiefly gray to black clay shale. Fossils in shale + cone.