The Astoria Formation (formerly known as the Astoria shales) is a geologic formation in Washington state & Oregon. It preserves fossils dating back to...
15 KB (764 words) - 21:16, 25 September 2023
the Astoria Formation that jetted into southwest Washington state. Because fossil Desmatophoca have only appeared from the same site, the Astoria Foundation...
9 KB (1,150 words) - 05:29, 4 January 2024
Pinnipediformes. L. G. Barnes. 1989. A new enaliarctine pinniped from the Astoria Formation, Oregon, and a classification of the Otariidae (Mammalia: Carnivora)...
2 KB (176 words) - 03:42, 25 October 2023
which the same formation is exposed. Such sites may have separate entries if they are considered to be more notable than the formation as a whole. In...
66 KB (763 words) - 17:11, 14 August 2024
the walrus. Four specimens of Proneotherium were discovered in the Astoria Formation of Lincoln County, Oregon, U.S. These specimens included cranial and...
3 KB (259 words) - 09:31, 2 January 2024
History. Retrieved 2009-AUG-21. Flickr: Photo of Astoria Formation arm specimen NMNH PAL 335794 and Nye Formation vertebrae specimen NMNH PAL 335621 at National...
25 KB (3,085 words) - 14:02, 4 February 2024
strata near Spencer Creek, Astoria formation, Oregon, USA. Ellen James Moore, Miocene Marine Mollusks from the Astoria Formation in Oregon; plate 10 fig...
1 KB (106 words) - 22:51, 2 April 2024
silicification. Some examples are silicified limestones of Miocene Astoria Formation in Washington, silicified ignimbrite in El Tatio Geyser Field in Chile...
31 KB (3,436 words) - 12:04, 27 September 2023
Group or Formation Period Notes Astoria Formation Neogene Blakeley Formation Paleogene Cedar District Formation Cretaceous Clallam Formation Neogene Cowlitz...
3 KB (55 words) - 06:42, 16 December 2022
Marsh Astoria Formation Blue Mountains Coyote Butte Formation Curry County Fossil Lake Keasey Formation Nye Formation Pittsburg Bluff Formation Wallowa...
49 KB (5,113 words) - 18:04, 16 June 2024