Oligocene through Pliocene foraminifera from the Yakataga Reef section, Gulf of Alaska Tertiary Province, Alaska

Foraminifera Alaska Invertebrata Miocene Oligocene paleoclimatology sandstone sheet silicates microfossils Tertiary Cenozoic glauconite clastic rocks diamictite mica group Northeast Pacific East Pacific Gulf of Alaska Pacific Ocean Neogene Pliocene reefs North Pacific sedimentary rocks Paleogene silicates stratigraphy Yakataga Formation Protista siltstone United States