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Jun 21 at 23:19 comment added John to be fair for most of that time, earth would not be considered habitible ot modern humans. But yeah you are still looking at hudreds of millions of year of habitibility to have land animals.
Jun 7, 2016 at 17:44 history edited Nick2253 CC BY-SA 3.0
fixed evolution timeline error wrt grass v earlier plants
Oct 2, 2015 at 1:48 comment added seumasmac Grasses are the wrong plants to have in this scenario. Grasses were the last major plant group to appear, well after things like ferns, flowers, trees, etc
Feb 5, 2015 at 15:35 vote accept Jax
Feb 5, 2015 at 12:38 comment added Bill Blondeau +1 for good planetology, and for drawing our attention to the immense time scales involved. Planetary time is deep time.
Feb 4, 2015 at 23:38 history answered Nick2253 CC BY-SA 3.0