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  Outline 13     Evolutionary  (old) vs. Phenetic  (1960's-70's) vs. Cladistic  (1970's-80's)      classification philosophies      Evolutionary  - Appearance + branching order considered together,           Linnaean graded classification      Phenetic  - Overall similarity (many = weight characters), Linnaean           graded classification      Cladistic  - Branching order alone, new features at each node,           nested cladogram diagram & classification Monophyletic        vs.        paraphyletic  vs.         polyphyletic  taxa Clad.  Phen., Evol.             Phen., Evol.                --------   Speciation models         Phyletic gradualism  (old) vs. Punctuated equilibrium  (1972 )           Slow continuous change in whole species vs. almost no change in
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  • Spring '08
  • Staff
  • Linnaean, Cladistic, Paleozoic Evol. Fauna, polyphyletic taxa Clad., classification philosophies      Evolutionary, Cambrian Evol. Fauna

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