Field Notebook: Wyoming 1899
Page 39
Image from the Biodiversity Heritage Library. Contributed by Yale Peabody Museum of Natural History. | www.biodiversitylibrary.org
Transcription
Belemnites here. Oyster layers here, Ammonites about 10 ft thick? Grimid also fine about this horizon. Marine zone: Cretaceous lags just above Nodules with belegpods Astute etc. near base Main Belemnites horizon. Soft grun not clearly shale and Belemnites.. 10 feet Yellowish SS soft with harder layers, breaking into uddles. 25 feet. Ripple. Thin bedded ss gray whitish and greenish soft partings. Fossils Pelegpods & Oligomula. 20 feet. Light yellow ss thin bedded 20 feet. Heavy bdd - 20 ft. Probably 30 feet more of SS. Other Cretaceous Creek bed beds Constructs Inlier limit. 4 ft New shale Green thin cross bedding, 1 to 2 feet Olive green soft shale with lenses nodules? This ss and nodules rest on bedrock forest.