All paleontologists know that the fossil record contains precious little in the way of intermediate forms; transitions between major groups are characteristically abrupt.

Gould, Stephen Jay, The Return of Hopeful Monsters, Natural History, Vol. LXXXVI(6), June-July 1977, p. 24.

*Stephen Jay Gould was professor of geology and paleontology at Harvard University prior to his death in 2002.

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