Telsitna Formation Stratigraphic range: Ordovician | |
---|---|
Type | Formation |
Lithology | |
Primary | Limestone |
Other | Siltstone |
Location | |
Region | Alaska |
Country | United States |
The Telsitna Formation is a geologic formation in Alaska. It preserves fossils dating back to the Ordovician period.
Alaska is a U.S. state on the northwest extremity of the country's West Coast, just across the Bering Strait. A semi-exclave of the U.S., it borders the Canadian province of British Columbia and territory of Yukon to the east and southeast and has a maritime border with Russia's Chukotka Autonomous Okrug to the west. To the north are the Chukchi and Beaufort seas of the Arctic Ocean, while the Pacific Ocean lies to the south and southwest.
Matanuska-Susitna Borough is a borough located in the U.S. state of Alaska. Its county seat is Palmer, and the largest community is the census-designated place of Knik-Fairview.
Petersburg Borough is a borough in the U.S. state of Alaska. According to Census Bureau estimates, the population was 3,266 in 2019. The borough seat is Petersburg. Petersburg is the most recently created county equivalent in the United States.
Troodon is a former wastebasket taxon and a potentially dubious genus of relatively small, bird-like dinosaurs known definitively from the Campanian age of the Cretaceous period. It includes at least one species, Troodon formosus, known from Montana. Discovered in October 1855, T. formosus was among the first dinosaurs found in North America, although it was thought to be a lizard until 1877. Several well-known troodontid specimens from the Dinosaur Park Formation in Alberta were once believed to be members of this genus. However, recent analyses in 2017 have found the genus to be undiagnostic and referred some of these specimens to the genus Stenonychosaurus and others to the newly created genus Latenivenatrix.
The Seward Peninsula is a large peninsula on the western coast of the U.S. state of Alaska whose westernmost point is Cape Prince of Wales. The peninsula projects about 320 kilometers (200 mi) into the Bering Sea between Norton Sound, the Bering Strait, the Chukchi Sea, and Kotzebue Sound, just below the Arctic Circle. The entire peninsula is about 330 kilometers (210 mi) long and 145 km (90 mi)-225 km (140 mi) wide. Like Seward, Alaska, it was named after William H. Seward, the United States Secretary of State who fought for the U.S. purchase of Alaska.
Pachyrhinosaurus is an extinct genus of centrosaurine ceratopsid dinosaur from the Late Cretaceous period of North America. The first examples were discovered by Charles M. Sternberg in Alberta, Canada, in 1946, and named in 1950. Over a dozen partial skulls and a large assortment of other fossils from various species have been found in Alberta and Alaska. A great number were not available for study until the 1980s, resulting in a relatively recent increase of interest in Pachyrhinosaurus.
Little Sitkin Island is a volcanic island in the Rat Islands archipelago of the Western Aleutian Islands, Alaska, about 3 miles (4.8 km) east of Davidof Island. Great Sitkin Island lies 185 miles (298 km) further east in the Andreanof Islands.
Muncho Lake Provincial Park is a provincial park in British Columbia, Canada, located on the Alaska Highway as it transits the northernmost Canadian Rockies west of Fort Nelson. The park is part of the larger Muskwa-Kechika Management Area. It is named after Muncho Lake, which is in the park and is both the name of the lake and of the community located there.
Hazy Islands Wilderness, at 32 acres, is Alaska's smallest wilderness area. It was officially designated as Wilderness in 1970 by the United States Congress. The islands are located west of Coronation Island in the Alaska Panhandle area. Hazy Islands Wilderness comprises five small islands and is home to 10 species of birds, including Brandt's cormorant (Phalacrocorax auritus). It has no anchorages or campsites, and human visitation is discouraged to protect the birds.
Megalneusaurus is an extinct genus of large pliosaur that lived in the Sundance Sea during the Kimmeridgian, ~156-152 million years ago, in the Late Jurassic. It was named by paleontologist W. C. Knight in 1895.
The Prince Creek Formation is a geological formation in Alaska with strata dating to the Early Maastrichtian. Dinosaur remains are among the fossils that have been recovered from the formation.
The Alaska Anchorage Seawolves men's ice hockey team is a National Collegiate Athletic Association (NCAA) Division I college ice hockey program that represents the University of Alaska Anchorage. The Seawolves are a member of the Western Collegiate Hockey Association (WCHA). They play at the Sullivan Arena in Anchorage, Alaska.
Pachyrhinosaurini was a tribe of centrosaurine dinosaurs. The clade existed during the Late Cretaceous, about 84.9 to 66 million years ago, evolving during the earliest Campanian, and becoming extinct in the Maastrichtian. The tribe contains three genera: Einiosaurus, Achelousaurus, and Pachyrhinosaurus. Pachyrhinosaurus and Achelousaurus form the clade of pachyrhinosaurins called the Pachyrostra ("thick-snouts"), characterized primarily by their nasal bosses.
Matanuska-Susitna Valley is an area in Southcentral Alaska south of the Alaska Range about 35 miles (56 km) north of Anchorage, Alaska. It is known for the world record sized cabbages and other vegetables displayed annually in Palmer at the Alaska State Fair. It includes the valleys of the Matanuska, Knik, and Susitna Rivers. 11,000 of Mat-Su Valley residents commute to Anchorage for work . It is the fastest growing region in Alaska and includes the towns of Palmer, Wasilla, Big Lake, Houston, Willow, Sutton, and Talkeetna.
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.
Nanuqsaurus is a genus of carnivorous tyrannosaurid theropod known from the Late Cretaceous period Prince Creek Formation of the North Slope of Alaska, United States. It contains a single species, Nanuqsaurus hoglundi, known only from a partial skull.
The 1974 Alaska gubernatorial election took place on November 5, 1974, for the post of Governor of Alaska. Republican challenger and mayor of Bristol Bay Borough Jay Hammond narrowly beat Democratic incumbent Bill Egan in a close race that was forced into a recount to verify the results. The formation of the new Alaskan Independence Party was considered to have a large impact on the race.
The geology of Alaska includes Precambrian igneous and metamorphic rocks formed in offshore terranes and added to the western margin of North America from the Paleozoic through modern times. The region was submerged for much of the Paleozoic and Mesozoic and formed extensive oil and gas reserves due to tectonic activity in the Arctic Ocean. Alaska was largely ice free during the Pleistocene, allowing humans to migrate into the Americas.
The COVID-19 pandemic was confirmed to have reached the U.S. state of Alaska on March 12, 2020.
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