| Schrader Bluff Formation Stratigraphic range: Late Cretaceous [1] | |
|---|---|
| Type | Formation |
| Underlies | Prince Creek Formation [2] |
| Overlies | Tuluvak Formation [2] |
| Location | |
| Region | Alaska |
| Country | United States |
| Type section | |
| Named for | Schrader Bluff on the Anaktuvuk River [3] |
| Named by | George Gryc, et al [3] |
The Schrader Bluff Formation is a geologic formation in Alaska. It preserves fossils dating back to the Cretaceous period, [4]
Fossil remains include Inoceramus and Scaphites . [5]
Originally named by George Gryc and others as the marine formation of the Colville Group (abandoned). [3]
The Prince Creek Formation is a geological formation in Alaska with strata dating to the Early Maastrichtian stage of the Late Cretaceous. Dinosaur remains are among the fossils that have been recovered from the formation.
The Budden Canyon Formation is the name of a sedimentary rock formation in California of Cretaceous (Berriasian-Turonian) age.
Paleontology in Alaska refers to paleontological research occurring within or conducted by people from the U.S. state of Alaska. During the Late Precambrian, Alaska was covered by a shallow sea that was home to stromatolite-forming bacteria. Alaska remained submerged into the Paleozoic era and the sea came to be home to creatures including ammonites, brachiopods, and reef-forming corals. An island chain formed in the eastern part of the state. Alaska remained covered in seawater during the Triassic and Jurassic. Local wildlife included ammonites, belemnites, bony fish and ichthyosaurs. Alaska was a more terrestrial environment during the Cretaceous, with a rich flora and dinosaur fauna.
The Prairie Bluff Chalk is a geologic formation in Alabama and Mississippi. It preserves fossils dating back to the Cretaceous period.
The Windrow Formation is a geologic formation in Minnesota named after Windrow Bluff on Fort McCoy, Monroe County, Wisconsin. It preserves fossils dating back to the Cretaceous period.
The Dunderberg Shale is a geologic formation in Nevada and Utah.
The Ely Limestone is a geologic formation in Nevada and Utah. It preserves fossils dating back to the Carboniferous period.
The Banner Formation is a Carboniferous period geologic formation in northern Elko County, Nevada.
The Windfall Formation is a geologic formation in northeastern and southern Nevada.
The La Jolla Group is a group of geologic formations in coastal southwestern San Diego County, Southern California. Its locations include the coastal La Jolla San Diego region.
The Poway Group is a geologic group in San Diego County, Southern California. It preserves fossils dating back to the Paleogene period.
The Ungalikthluk Belt Formation is a geologic formation in Alaska. It preserves fossils dating back to the Cretaceous period.
The Staniukovich Formation is a geologic formation in Alaska. It preserves fossils dating back to the Cretaceous period.
The Okpikruak Formation is a geologic formation in Alaska. It preserves fossils dating back to the Cretaceous period.
The Chisana Formation is a geologic formation in Alaska. It preserves fossils dating back to the Cretaceous period.
The Corwin Formation is a geologic formation in Alaska. It preserves fossils dating back to the Cretaceous period.
The Kongakut Formation is a geologic formation in Alaska. It preserves fossils dating back to the Cretaceous period.
The Kukpowruk Formation is a geologic formation in Alaska. It preserves fossils dating back to the Cretaceous period.
The Shublik Formation is a geologic formation in Alaska. It preserves fossils dating back to the Triassic period.
The Rosario Group is a Late Cretaceous geologic group in southwestern California and northwestern Baja California (Mexico). In older literature it was named Rosario Formation.
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