The Cretaceous-Paleogene Boundary, (K-Pg) boundary, and the associated Dinosaur Extinc-tion theories have many precedents and most could be viewed scientifically from certain and known historical accounts. These hypotheses, some more believable than others, can serve a purpose to study current life and potential trends for future evolutionary traits. Evaluating certain aspects of the theory’s within this research, the main focus will be not be on the factual cause of the extinction, but rather the circumstances, how one could play into the other; could have led to their extinction. This research will provide, compare and contrasts the theories of dinosaur ex-tinction during the Cretaceous-Paleogene Boundary. The postulated and most plausible
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With this, it is said to believe that a drastic cataclysmic action happened on earth 65 million years, fundamental-ly killing off the dinosaurs. As we know today, that reptiles and mammals can adapt to climate change in small scales, the scale of this sudden climate change was greater than the animals could have adapted to. With environment changing in either a drastically fast pace and or a semi-fast pace from warm to colder temperatures as to which the dinosaurs could not adapt to, in the short amount of time. “Colbert, Cowles and Bogert (1946) studied temperature tolerances of alligators in relation to the problem of dinosaur extinction. They infer that the data regarding the living alligator (or crocodilians) are applicable to speculations concerning dinosaurs because of their close taxonomic relationship, the general similarity of environments in which crocodilians now live and those in which some dinosaurs (amphibious) lived, and the fact that crocodilians are large reptiles as were many dinosaurs.” (Axelrod 597) Also this part of the text, “With respect to small dinosaurs, there is no evidence to show that they were adapted to cope with the environment like modern reptiles which escape extreme temperatures by burrowing (lizards, snakes, turtles) or going into aestivation or hibernation (turtles, snakes, alligators). Since small dinosaurs would be far more sensitive to slight changes in temperature than large ones, they must have been dependent on climatic moderation.” (Axelrod 600) Because I do recall reading in the text during week 1 that there has been no evidence that dinosaur’s, of any kind, lived in trees or
With this, it is said to believe that a drastic cataclysmic action happened on earth 65 million years, fundamental-ly killing off the dinosaurs. As we know today, that reptiles and mammals can adapt to climate change in small scales, the scale of this sudden climate change was greater than the animals could have adapted to. With environment changing in either a drastically fast pace and or a semi-fast pace from warm to colder temperatures as to which the dinosaurs could not adapt to, in the short amount of time. “Colbert, Cowles and Bogert (1946) studied temperature tolerances of alligators in relation to the problem of dinosaur extinction. They infer that the data regarding the living alligator (or crocodilians) are applicable to speculations concerning dinosaurs because of their close taxonomic relationship, the general similarity of environments in which crocodilians now live and those in which some dinosaurs (amphibious) lived, and the fact that crocodilians are large reptiles as were many dinosaurs.” (Axelrod 597) Also this part of the text, “With respect to small dinosaurs, there is no evidence to show that they were adapted to cope with the environment like modern reptiles which escape extreme temperatures by burrowing (lizards, snakes, turtles) or going into aestivation or hibernation (turtles, snakes, alligators). Since small dinosaurs would be far more sensitive to slight changes in temperature than large ones, they must have been dependent on climatic moderation.” (Axelrod 600) Because I do recall reading in the text during week 1 that there has been no evidence that dinosaur’s, of any kind, lived in trees or