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Given that planetary gravity was probably not much different, what about the possibility that the atmosphere was significantly larger back then?What if flight by such a large animal was quite easy, such as if there were 4 or 5 atmospheres of pressure at sea level?
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Given that planetary gravity was probably not much different, what about the possibility that the atmosphere was significantly larger back then?
What if flight by such a large animal was quite easy, such as if there were 4 or 5 atmospheres of pressure at sea level?