RE: If an Asteroid wiped out the Dinosaurs how did Evolution continue?
July 9, 2013 at 7:08 pm
(This post was last modified: July 9, 2013 at 7:16 pm by Anomalocaris.)
The problem with using genome to determine the time of origin of the entire class of animals or plants is the fact that what you are really dating is not the time that has elapsed since the origin of the entire group, but instead the time that has elapsed since the last common ancester of the living members of the group. The group itself may be considerably more ancient than that.
The fact that Ica does not even represent all living members of grass family even today further weakens the case that its genome can be used to determine the time of last common ancester of all grass, and therefore the true origin of grass.
The fact that Ica does not even represent all living members of grass family even today further weakens the case that its genome can be used to determine the time of last common ancester of all grass, and therefore the true origin of grass.
