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4.1 Plate tectonic processes

4.1 Plate tectonic processes. 4.2 Radiometric dating. 4.3 Changes in the mean number of ribs in eight lineages of trilobites. 4.4(1) Changes in the mean values of characters in fossil sticklebacks. 4.4(2) Changes in the mean values of characters in fossil sticklebacks.

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4.1 Plate tectonic processes

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  1. 4.1 Plate tectonic processes

  2. 4.2 Radiometric dating

  3. 4.3 Changes in the mean number of ribs in eight lineages of trilobites

  4. 4.4(1) Changes in the mean values of characters in fossil sticklebacks

  5. 4.4(2) Changes in the mean values of characters in fossil sticklebacks

  6. 4.5 A fossil can help confirm an evolutionary hypothesis

  7. 4.6(1) Eusthenopteron, a member of the group of lobe-finned fishes from which tetrapods arose

  8. 4.6(2) Eusthenopteron, a member of the group of lobe-finned fishes from which tetrapods arose

  9. 4.7 Feathered dinosaurs to birds

  10. 4.8 Skeletal features of (A) Archaeopteryx, (B) a modern bird, and (C) a theropod dinosaur

  11. 4.9 A phylogeny of some groups of theropod dinosaurs

  12. 4.10(1) Skulls of some stages in evolution from early synapsids to early mammals

  13. 4.10(2) Skulls of some stages in evolution from early synapsids to early mammals

  14. 4.10(3) Skulls of some stages in evolution from early synapsids to early mammals

  15. 4.11(1) Reconstruction of stages in the evolution of cetaceans from terrestrial artiodactyl ancestors

  16. 4.11(2) Reconstruction of stages in the evolution of cetaceans from terrestrial artiodactyl ancestors

  17. 4.12(1) Estimated body weights of fossil hominins

  18. 4.12(2) Estimated brain volumes of fossil hominins

  19. 4.13 The approximate temporal extent of named hominin taxa in the fossil record

  20. 4.14 Frontal and lateral reconstructions of the skulls of a chimpanzee and some fossil hominins

  21. 4.15 A living bristletail (order Archaeognatha)

  22. 4.16(1) Evolution of body mass in the horse family, Equidae

  23. 4.16(2) Evolution of body mass in the horse family, Equidae

  24. 4.17(1) A parallel trend

  25. 4.17(2) A parallel trend

  26. 4.18(1) Three models of evolution, as applied to a hypothetical set of fossils

  27. 4.18(2) Three models of evolution, as applied to a hypothetical set of fossils

  28. 4.19 Phyletic gradualism: change in a molar of the grass-feeding vole Mimomys

  29. 4.20 Punctuated equilibrium: the phylogeny and temporal distribution of a lineage of ectoprocts

  30. 4.21 “Punctuated gradualism”

  31. 4.22(1) An idealized normal frequency distribution

  32. 4.22(2) Distribution away from the original mean

  33. 4.23(1) Evolution of the size (surface area) of the first molar of Eocene Hyracotherium

  34. 4.23(2) Evolution of the size (surface area) of the first molar of Eocene Hyracotherium

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