Field Notebook: WY, SD 1956
Page 45
Image from the Biodiversity Heritage Library. Contributed by Yale Peabody Museum of Natural History. | www.biodiversitylibrary.org
Transcription
2nd other spots of sand in this unit 8.0 ±? Claystone, variegated, red, pink + various grays. Note - A few polished pebbles, incl. one perfect tricanter found in float, coming from interval between contact and the thin ledge below ss top of offset 1.