Pyro, on 08 March 2010 - 08:35 PM, said:
We don't know much about the vegetation of the time though, do we? Couldn't have the plants been much larger as well? Dinosaurs were around for millions of years, a lot longer than we've been around so I find it hard to believe that they simply overwhelmed the ecology. Something drastic must have changed. Maybe they discovered porn and fapped themselves to death.
They gradually grew bigger and bigger. It wasn't something that was overnight. Eventually, they were too big and too many of them that they did end up eating everything. Those larger dinosaurs must have only been around for the last part of the Jurasic age.
I am not the originator of this idea. However, I do tend to agree with things that make sense.
Quote
2. THE LATER REPTILIAN AGE
120,000,000 years ago a new phase of the reptilian age began. The great event of this period was the evolution and decline of the dinosaurs. Land-animal life reached its greatest development, in point of size, and had virtually perished from the face of the earth by the end of this age. The dinosaurs evolved in all sizes from a species less than two feet long up to the huge noncarnivorous dinosaurs, seventy-five feet long, that have never since been equaled in bulk by any living creature.
The largest of the dinosaurs originated in western North America. These monstrous reptiles are buried throughout the Rocky Mountain regions, along the whole of the Atlantic coast of North America, over western Europe, South Africa, and India, but not in Australia.
These massive creatures became less active and strong as they grew larger and larger; but they required such an enormous amount of food and the land was so overrun by them that they literally starved to death and became extinct--they lacked the intelligence to cope with the situation.
JAB out