RE: If an Asteroid wiped out the Dinosaurs how did Evolution continue?
July 9, 2013 at 5:31 pm
(This post was last modified: July 9, 2013 at 5:34 pm by The Grand Nudger.)
Just skimming through, the new date falls within the range given prior, still 5mil we could push it back and be within what the genome tells us. Similarly, there's an -even larger- gap now between the earliest evidence of grasses and the earliest evidence of their diversification and distribution. If anything, I'd say that this makes the situation even more impressive for grass.
Where once we imagined a desolate earth that grass crept across, we now see a densely vegetated earth with some grasses who were busy doing (apparently nothing) until 55ish mya being overtaken by said grass in the face of competition. Grazing mammalians are much better represented from the time period thence and hence in any case (relative to whats been pointed at for grazing dinos). Don't you think?
Where once we imagined a desolate earth that grass crept across, we now see a densely vegetated earth with some grasses who were busy doing (apparently nothing) until 55ish mya being overtaken by said grass in the face of competition. Grazing mammalians are much better represented from the time period thence and hence in any case (relative to whats been pointed at for grazing dinos). Don't you think?
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