Evolution of the insects

  title={Evolution of the insects},
  author={David A. Grimaldi and Michael S. Engel},
Section 1. Diversity and Evolution: Introduction Species: their nature and number How many species of insects? Reconstructing evolutionary history Section 2. Fossil Insects: Insect fossilization Dating and ages Major fossil Insect deposits Section 3. Arthropods and the Origin of Insects: Onychophora: the velvet-worms Tardigrada: the water-bears Arthropoda: the jointed animals Hexapoda: the six-legged arthropods Section 4. The insects: Morphology of insects Relationships among the insect orders… Expand
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