[Dinosaurs by William Diller Matthew]@TWC D-Link bookDinosaurs CHAPTER I 1/6
CHAPTER I. THE AGE OF REPTILES. ITS ANTIQUITY, DURATION AND SIGNIFICANCE IN GEOLOGIC HISTORY. Palaeontology deals with the History of Life.
Its time is measured in geologic epochs and periods, in millions of years instead of centuries.
Man, by this measure, is but a creature of yesterday--his "forty centuries of civilization"[1] but a passing episode.
It is by no means easy for us to adjust our perspective to the immensely long spaces of time involved in geological evolution.
We are apt to think of all these extinct animals merely as prehistoric--to imagine them all living at the same time and contending with our cave-dwelling ancestors for the mastery of the earth. In order to understand the place of the Dinosaurs in world-history, we must first get some idea of the length of geologic periods and the immense space of time separating one extinct fauna from another. _The Age of Man._ Prehistoric time, as it is commonly understood, is the time when barbaric and savage tribes of men inhabited the world but before civilization began, and earlier than the written records on which history is based.
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