Time Frames: The Rethinking of Darwinian Evolution and the Theory of Punctuated EquilibriaDescribes the new evolutionary theory of punctuated equilibria, argues that changes in species are rare but happen in rapid bursts, and examines the fossil record of invertebrates. |
Contents
56 | 13 |
Adaptation and Macroevolution | 92 |
Species at Play in | 152 |
Copyright | |
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adaptive change allopatric speciation anatomical ancestor antelope basic beetles bermudensis biological biologists brachiopods cies clams closely related columns of lenses competition crassituberculata creatures Darwin Darwinian descendant Dobzhansky eastern ecological environments evolutionary biology evolutionary change evolutionary process evolutionary theory evolved example explain extinction eyes forms fossil record gaps gene generalists genetic geneticists geographic geological Gondwana Gould habitat Hamilton hominid Homo erectus horseshoe crabs human evolution idea impalas interpretation least lineage living look macroevolution Mayr Middle Devonian Midwest million years ago modern mutations natural selection niche North notion occur organisms Origin of Species P.b. zonatus paedomorphic paleontologists pattern perhaps peripheral isolates phacopid Phacops milleri Phacops rana phyletic gradualism picture population punctuated equilibria Purisima quarry range relatively rocks samples seems Shale shells simply snails sort specimens stability stasis Teggart tion transformation trends trilobites truly typically variation Vrba