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Cretaceous   /krɪtˈeɪʃɪs/   Listen
Cretaceous

noun
1.
From 135 million to 63 million years ago; end of the age of reptiles; appearance of modern insects and flowering plants.  Synonym: Cretaceous period.






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"Cretaceous" Quotes from Famous Books



... elsewhere. The synchronism remains to be fully established by palaeontological proofs. He thinks he has been able to fix upon the true point of division between the Mesozoic and Cenozoic ages, and to prove that coal was deposited through about 7,000 feet of Cretaceous and about 4,500 feet of Cenozoic beds. Mr. Powell's literary style is excellent—not involved, but clear and energetic. He was wise to abandon the idea of publishing an itinerary, which would, as he says, "encumber ...
— The Galaxy - Vol. 23, No. 1 • Various

... D'Orbigny thinks that they probably indicate a Neocomian formation. Again, fifteen degrees of latitude northward, in Colombia, there is a grand fossiliferous deposit, now well known from the labours of Von Buch, Lea, d'Orbigny, and Forbes, which belongs to the earlier stages of the cretaceous system. Hence, bearing in mind the character of the few fossils from Tierra del Fuego, there is some evidence that a great portion of the stratified deposits of the whole vast range of the South American Cordillera belongs to ...
— South American Geology - also: - Title: Geological Observations On South America • Charles Darwin

... geological strata, the whole series of cretaceous formations have to be passed through before reaching the Oolite formation, of which the Kimeridge clay forms almost the upper layer. But at Woodhall and the surrounding district the whole of this series of rocks ...
— Records of Woodhall Spa and Neighbourhood - Historical, Anecdotal, Physiographical, and Archaeological, with Other Matter • J. Conway Walter

... stream, as the Madeira now joins it at the head of the island of Tupinambaranas. If in countless centuries to come the ocean should continue to eat its way into the Valley of the Amazons, once more transforming the lower part of the basin into a gulf, as it was during the cretaceous period, the time might arrive when geographers, finding the Madeira emptying almost immediately into the sea, would ask themselves whether it had ever been indeed a branch of the Amazons, just as they now question whether the Tocantins is a tributary of the main ...
— The Atlantic Monthly, Volume 18, No. 106, August, 1866 • Various

... may be divided longitudinally into two regions which differ from each other in their geological structure. Along the coast lies a belt of granite and schist overlaid unconformably by Cretaceous and Tertiary deposits; inland the mountains are formed chiefly of folded Mesozoic beds, together with volcanic rocks of later date. The great longitudinal valley of Chile runs approximately, but only approximately, along the boundary between the two ...
— Encyclopaedia Britannica, 11th Edition, Volume 6, Slice 2 - "Chicago, University of" to "Chiton" • Various

... the history of the horse-type is exactly and precisely that which could have been predicted from a knowledge of the principles of evolution. And the knowledge we now possess justifies us completely in the anticipation, that when the still lower Eocene deposits, and those which belong to the Cretaceous epoch, have yielded up their remains of ancestral equine animals, we shall find, first, a form with four complete toes and a rudiment of the innermost or first digit in front, with probably, a rudiment of the fifth digit in the hind foot;[6] while, in still older forms, the series of the digits ...
— Little Masterpieces of Science: - The Naturalist as Interpreter and Seer • Various



Words linked to "Cretaceous" :   Mesozoic, period, chalk, geological period, Mesozoic era, Age of Reptiles



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