. Bulletins of American paleontology. Oregon Oligocene Turridae: Hickman -48" ^â¦â^ JC Birkenfeld Vernonia 15' Timber 15' Quad. I J R)r«st Grove Forest Grove 15' Quad. Text-figure 1. â Index maps. Location of formations in the Pacific North- west referred to in text and generalized distribution of the Keasey Formation in the upper Nehalem River basin in Oregon, showing important fossiliferous outcrops in the lower (â¢), middle (â ), and upper (â ^) members. 1. Carmanah Point Beds, 2. Twin River Formation, 3. Marrowstone Shale, 4. Quimper Sand- stone, 5. Blakeley Formation, 6. Linc
. Bulletins of American paleontology. Oregon Oligocene Turridae: Hickman -48" ^â¦â^ JC Birkenfeld Vernonia 15' Timber 15' Quad. I J R)r«st Grove Forest Grove 15' Quad. Text-figure 1. â Index maps. Location of formations in the Pacific North- west referred to in text and generalized distribution of the Keasey Formation in the upper Nehalem River basin in Oregon, showing important fossiliferous outcrops in the lower (â¢), middle (â ), and upper (â ^) members. 1. Carmanah Point Beds, 2. Twin River Formation, 3. Marrowstone Shale, 4. Quimper Sand- stone, 5. Blakeley Formation, 6. Lincoln Creek Formation, 7. Gries Ranch Beds, 8. Willapa River "Keasey" Beds, 9. Cowlitz Formation, 10. Keasey Formation, n. Pittsburg Bluff Formation, 12. Alsea Formation, 13. Eugene Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Paleontological Research Institution (Ithaca, N. Y. ); Columbia University. Ithaca, N. Y. , Paleontological Research Institution [etc. ]
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