ARN Quote Library

"Stasis is data."

Gould, S. J. (1991)
"Opus 200"
Natural History, August, p. 16

The history of most fossil species include two features particularly inconsistent with gradualism:

1) Stasis - most species exhibit no directional change during their tenure on earth. They appear in the fossil record looking much the same as when they disappear; morphological change is usually limited and directionless;

2) Sudden appearance - in any local area, a species does not arise gradually by the steady transformation of its ancestors; it appears all at once and 'fully formed'.

Gould, S.J. (1977)
"Evolution's Erratic Pace"
Natural History, vol. 86, May

Darwin's prediction of rampant, albeit gradual, change affecting all lineages through time is refuted. The record is there, and the record speaks for tremendous anatomical conservatism. Change in the manner Darwin expected is just not found in the fossil record.

Eldredge, N. and Tattersall, I. (1982)
The Myths of Human Evolution
Columbia University Press, p. 48

Paleontologists just were not seeing the expected changes in their fossils as they pursued them up through the rock record. ... That individual kinds of fossils remain recognizably the same throughout the length of their occurrence in the fossil record had been known to paleontologists long before Darwin published his Origin. Darwin himself, ... prophesied that future generations of paleontologists would fill in these gaps by diligent search ... One hundred and twenty years of paleontological research later, it has become abundantly clear that the fossil record will not confirm this part of Darwin's predictions. Nor is the problem a miserly fossil record. The fossil record simply shows that this prediction is wrong.

The observation that species are amazingly conservative and static entities throughout long periods of time has all the qualities of the emperor's new clothes: everyone knew it but preferred to ignore it. Paleontologists, faced with a recalcitrant record obstinately refusing to yield Darwin's predicted pattern, simply looked the other way.

Eldredge, N. and Tattersall, I. (1982)
The Myths of Human Evolution
Columbia University Press, p. 45-46