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The Early Cretaceous was an important time for the dinosaurs of Africa because it was when Africa finally separated from South America, forming the South Atlantic Ocean. This was an important event because now the dinosaurs of Africa started developing endemism because of isolation. The Late Cretaceous of Africa is known mainly from North Africa.
However, the most reliable early record of North American dinosaurs comes from fragmentary saurischian fossils unearthed from the Upper Triassic Dockum Group of Texas. [2] Later in the Triassic period, dinosaurs left more recognizable remains, and could be identified as specific genera. Examples of later Triassic North American dinosaur genera ...
At the same time, Americans of European descent used the discovery of “deep time” to exclude Indigenous people and African Americans from the American story, and to put white, European ...
These ideas revolutionized dinosaur paleontology through a period called the Dinosaur Renaissance. [74] Another notable 20th-century find occurred in Montana during the 1970s. Jack Horner and Bob Makela's new duck-billed dinosaur genus Maiasaura provided both the first known dinosaur nests in North America as well as early evidence that ...
More than 260 dinosaur footprints discovered in Brazil and Cameroon provide further evidence that South America and Africa were once connected as part of a giant continent millions of years ago.
Born in Philadelphia, [3] and a descendant of Welsh Quakers who had emigrated in 1698, William Parker Foulke was an abolitionist, prison reformer, pamphleteer, philanthropist, lawyer, [4] historian and geologist, the last of which directly led to the discovery, which was partially named for him by Joseph Leidy and for which he is now best-known.
Washington is the latest state to have found their first dinosaur bone, it was recovered in 2012 but was not publicly identified until May 21, 2015. Some states contain rocks of the appropriate type and age to preserve dinosaur fossils, so the list of states with known dinosaur fossils is likely to increase in the future. [133] [134]
A Global View of Early Cretaceous Dinosaurs (1997) Cretaceous Dinosaurs of Africa: Examples from Cameroon and Malawi, Memoirs of the Queensland Museum (Co-writer) (1996) Lone Star Dinosaurs (1995) Cretaceous Airport - The Surprising Story of Real Dinosaurs at DFW (1993) Quest for the African Dinosaur: Ancient Roots of the Modern World (1993) [8]