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The Western North American floras of the Eocene were divided into four floral "stages" by Jack Wolfe based on work with the Puget Group plant fossils.The four stages, Franklinian, Fultonian, Ravenian, and Kummerian covered the Early Eocene through early Oligocene, and three of the four were given informal early/late substages.
North American archaeological periods divides the history of pre-Columbian North America into a number of named successive eras or periods, from the earliest-known human habitation through to the early Colonial period which followed the European colonization of the Americas.
Paleogene life of North America (4 C) M. Paleogene Mexico (1 C, 33 P) N. Paleogene Nicaragua (1 P) O. Oligocene North America (8 C, 10 P) P. Paleocene North America ...
It was the largest city in North America in the 12th century. [19] 1150–1350: Ancestral Pueblo people are in their Pueblo III Period; 1200: Construction begins on the Grand Village of the Natchez near Natchez, Mississippi. This ceremonial center for the Natchez people is occupied and built upon until the early 17th century. [20]
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.
Paleocene epoch geology of North America, during the Paleogene Period of the Cenozoic Era Subcategories. This category has the following 7 subcategories, out of 7 ...
Soon, Pangaea began to split up and North America began drifting north and westward. During the latter Jurassic, the floodplains of the western states were home to dinosaurs like Allosaurus, Apatosaurus, and Stegosaurus. During the Cretaceous, the Gulf of Mexico expanded until it split North America in half. Plesiosaurs and mosasaurs swam in ...
Paleogene United States (31 C, 25 P) Pages in category "Paleogene stratigraphic units of North America" The following 19 pages are in this category, out of 19 total.