<< My idea of 'macroevolution' is, for example, what was undoubtedly
fish gradually becoming amphibian. Would you not agree that the best
data you can offer to support this contention must be taken with a
considerable degree of extrapolation? >>
Glenn Morton has an essay on fish to amphibian transitional fossils at
www.isource.net/~grmorton/transit.htm that answers your question.
Paul S.