[tongass kid]

Your description of PE is confusing. From the time of Darwin's book in 1859 until 1972 the evolution supporters were greatly troubled by stasis in the fossil record followed by burst of new species. This was a problem because the early concept of gradualism was in direct conflict with the fossil record. It took 103 years before someone (E&G) attempted to explain the problem in the fossil record. In 1972 they coined the now famous PE theory in a attempted to explain the problem of gradualism, stasis, and the lack of accumulation all in one theory. Naturally this theory has lead to great debate in the scientific community, some agreeing and some disagreeing. The debate may have reached it apex in 1990 with work of Dr. Charlesworth combining PE with gradualism. Because PE is an unprovable theory the debate continues in the academic community.

[Oztrich Boy]

From the time of Darwin's book in 1859 until 1972 the evolution supporters were greatly troubled by stasis in the fossil record followed by burst of new species.

Not really

the periods during which species have undergone modification, though long as measured in years, have probably been short in comparison with the periods during which they retain the same form

written in 1869 by a chap called Charles Darwin, you may have heard of him.