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From the Classroom of the Future website. Includes an introduction to the major theories on the Cretaceous-Tertiary extinction event. ... Into the Future | Disease | Meet the Dinosaurs...
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www.cotf.edu/ete/modules/msese/dinosaur.html
www.cotf.edu/ete/modules/msese/dinosaur.html
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This had major effects on dinosaurs. Some herbivorous dinosaurs, like Edmontosaurus, ate only conifers. As flowering plants came to dominate the landscape, Edmontosaurus died out, ... THE EXTINCTION OF THE DINOSAURS; Most dinosaur species perished in background extinctions that occurred throughout their Mesozoic Era.
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www.enchantedlearning.com/subjects/dinosaurs/extinction...
www.enchantedlearning.com/subjects/dinosaurs/extinction/
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Dinosaur extinction theories. How and why did the dinosaurs go extinct? Most were gone long before the K-T extinction, which was probably caused by an asteroid impact. ... The K-T mass extinction obliterated the dinosaurs , pterosaurs , plesiosaurs, mosasaurs, ammonites, some families of birds and marsupial mammals,
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www.enchantedlearning.com/subjects/dinosaurs/extinction...
www.enchantedlearning.com/subjects/dinosaurs/extinction/Asteroid.html
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Find clues to one of life's the greatest mysteries. ... With all of these pieces to the puzzle in hand, the question remains, What role did these phenomena play in the extinction of the dinosaurs?
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www.pbs.org/wgbh/evolution/extinction/dinosaurs/index.h...
www.pbs.org/wgbh/evolution/extinction/dinosaurs/index.html
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Cretaceous–Tertiary extinction event - Wikipedia, the free encyclopedia
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The Cretaceous–Tertiary extinction event , which occurred approximately million years ago (Ma), was a large-scale mass extinction of animal and plant species in a geologically short period of time...
en.wikipedia.org/wiki/Cretaceous–Tertiary_extinction_ev...
en.wikipedia.org/wiki/Cretaceous–Tertiary_extinction_event
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1980: Few satisfactory answers to the mystery behind the extinction of dinosaurs were offered until 1980, when a group of scientists at the University of California at Berkeley — Luis and Walter Alvarez, Frank Asaro, and Helen Michel — proposed a stunning and convincing mechanism for the "K-T extinction" (meaning...
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www.ucmp.berkeley.edu/diapsids/extinction.html
www.ucmp.berkeley.edu/diapsids/extinction.html
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The disappearance of the dinosaurs may not be as neat and tidy as the animals being wiped out by a huge asteroid 65 million years ago. ... The new study ties the extinction of dinosaurs to an intensive period of volcanic activity and resulting greenhouse effects, and probably a series of asteroid hits.
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www.cnn.com/2004/TECH/science/03/02/coolsc.dinosaurs.ex...
www.cnn.com/2004/TECH/science/03/02/coolsc.dinosaurs.extinction/index.html
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Without food herbivores would be unable to survive, and consequently the carnivore dinosaurs would no food to eat, hence their extinction. ... Regression , caused extinction on the basis that all dinosaurs were marine creatures! Perhaps not applicable to flying dinosaurs.
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palaeo.gly.bris.ac.uk/Communication/Couch/possible.html
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Asteroid Impact vs. Volcano?Greenhouse Dinosaur Extinction Debate; Dewey McLean looks at the orgins of the two theories and the outcomes of the debates between their proponents. Deccan Traps mantle plume volcanism ... Directory > Science > Earth Sciences > Paleontology > Prehistoric Animals > Dinosaurs > Extinction Theories...
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dir.yahoo.com/Science/Earth_Sciences/Paleontology/Prehi...
dir.yahoo.com/Science/Earth_Sciences/Paleontology/Prehistoric_Animals/Dinosaurs/Extinction_Theories/
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