Introduction to macroevolution Most of what we have talked about so far can be termed microevolution. Now we are going to shift to macroevolution. Two major schools of thought- really there is a continuum, but it helps to think of two different groups.
Macroevolution is simply microevolution extrapolated over longer periods of time.
We don't need much in the way of new principles Richard Dawkins is an example. Macroevolution is NOT simply microevolution extrapolated over longer periods of time. Stephen Jay Gould is an example. The differences may not be entirely clear right now, but re-visit this table later, and see if you can see how the two views tend to hang together.