Saturday, December 20, 2008

The Age of Dinosaurs, 250 MYA - 65 MYA

Ah, yes! The dinosaurs. Animals were big; the weather was hot; their blood ran cold. Little warm blooded mammals eeked out their living on the fringes of the biomass.

The dinosaurs marked the high point of life on Earth before Man. As predatory as lions, tigers, and bears became in the later age, it is difficult to see how any one of them could have fared against the giant T-Rex or the flying Raptor. The movie, “Jurassic Park” probably gives us more the flavor of the age than any monograph can.

The Earth looked vastly different during these times. Here is a map of the planet as it was around 100 million years ago.

The great southern continent of Godwanna had just broken up. India is drifting north; the eastern part of Godwanna drifts north north east and will split up into Australia, Guinea, New Zealand, and other islands. On the other side of the world, North and South America are drifting together.

65 million years ago a comet crashes. A cataclysmic ending to a dramatic age.

Source of map: Wikipedia.

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