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T-Rex problems (i.imgur.com)

submitted 10 months ago by [email protected] to c/[email protected]

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[–] [email protected] 9 points 10 months ago (2 children)

I thought O2 was higher during the time of the dinosaurs? Maybe that was earlier... I don't remember when the time of the big bugs was.

[–] [email protected] 3 points 10 months ago

Big bugs were in the carboniferous, about 350-300 million years ago.

Dinos didn't evolve until about 240 million years ago, and didn't take over the world until about 200 million years ago. T Rex evolved quite late as far as non-avian dinos go, only about 68 million years ago.

[–] [email protected] 3 points 10 months ago

You could be right... that far back it's easy to mix up which millions and millions of years you're talking about