A theory of evolution above the species level.

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1963 • 9,988 citations

Vertebrate Paleontology

1967 • 1,207 citations

Genetics, Paleontology, and Evolution

1950 • 581 citations

Principles of paleontology

1973 • 264 citations

The phanerozoic time-scale

1965 • 131 citations

Pleistocene Mammals of Europe.

1969 • 70 citations

Comments on the preliminary working papers of Eden and Waddington.

1967 • 25 citations