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The map of North America with the Western Interior Seaway during the Campanian. The Western Interior Seaway (also called the Cretaceous Seaway, the Niobraran Sea, the North American Inland Sea, or the Western Interior Sea) was a large inland sea that split the continent of North America into two landmasses for 34 million years.
Devonian North America once again was home to seas that teemed with life. In fact Devonian marine life may have been more abundant and diverse than at any other point in the Paleozoic. [22] Glass sponges became abundant in western New York during the Devonian. [23] Especially notable are the marine fossils of Cuyahoga County, Ohio, which was ...
1150–1350: Pueblo III Period in the American Southwest. [18] The most important city of the Mississippian culture of mound builders, Cahokia on the Mississippi River opposite modern Saint Louis, Missouri, reached its zenith. It was the largest city in North America in the 12th century. [19]
986: Bjarni Herjolfsson crossed the Labrador Sea and saw North America. About 1000: Leif Ericson crossed the Labrador Sea to reach North America. Austronesians (Polynesians) colonize Easter Island and possibly made contact with South America. [5] [9] [22] [23] 1025: Chola invasion of Srivijaya
The History of North America encompasses the past developments of people populating the continent of North America. While it was commonly accepted that the continent first became inhabited by humans when individuals migrated across the Bering Sea 40,000 to 17,000 years ago, [ 1 ] more recent discoveries may have pushed those estimates back at ...
Marine molluscs of North America (1 C, 38 P) P. Pinnipeds of North America (1 C, 18 P) W. Western North American coastal fauna (4 C, 203 P) Pages in category "Marine ...
The Polynesians were also very involved in the exploration of marine life and their efforts are often overlooked. [17] Throughout the time period of 300–1275 AD the Polynesians made efforts to explore and populate the great Polynesian triangle, which is bounded in the east by Easter Island, in the north by Hawaii and in the southwest by New Zealand.
As used in this article, the term "west coast of North America" means a contiguous region of that continent bordering the Pacific Ocean: all or parts of the U.S. states of Alaska, Washington, Oregon, and California; all or parts of British Columbia and the Yukon in Canada; all or part of the Mexican states of Baja California, Baja California Sur, Sonora, Sinaloa, Nayarit, Jalisco, Colima ...