>>12145722I though OP was just talking out his ass for keks, but meh I suppose that's plausible. However I doubt that's what did it.
>>12145697What "allowed" them? I think a common theory is the warmer denser air back then had more O2 concentration and provided a more supportive environment for things to grow. Much like anacondas are found in a rain forest, not the tundra.
Little known fact, but sauropods started out as tiny 2 legged meat eaters. Another theory is their digestion was basically a fermentation process that produced a lot of heat, so they kept evolving larger and larger for more surface area. The largest of them (like in your pic related) weren't around until the cretaceous period anyway.
