Page 281 - (DK) The Ultimate Visual Dictionary 2nd Ed.
P. 281

FOSSILS

                                                                                   570
                                                                                    570  Cambrian
                                                 time
                                                                                           period
                                                  Precambrian
                                                                                       510
                                                                                             Ordovician
                                         Proterozoic eon
                                                                                              period
                                                                                           439  Silurian
                                                             Palaeozoic  era                      Devonian
         THE FOSSIL RECORD                                                                   409  period
                                                                                              363  period
                                                                             Trilobites
                                    Phanerozoic eon  Mesozoic era                                 Carboniferous
                                                                                                   period

                                                                                              290
                         Cenozoic  era
                                                   Dinosaurs                                 245  period
                                                                                                  Permian
                                                                  Ammonites and Belemnites  245
                Fish                                                              Seed ferns
                 Amphibians                                                               208  Triassic
                   Birds                                                                       period
                    Reptiles
                     Mammals
                      Primates
                         Echinoderms                                                  146   period
                                                                                             Jurassic
                          Brachiopods
                            Chelicerates
       VERTEBRATES
                             Insects
                              Crustaceans
                                Bivalves
                                 Gastropods                                             period
                                  Cephalopods                                    65
                                                                                        Cretaceous
                                     Corals and jellyfish
                                    Worms                                      65
                                       Bryozoans
                                         Foraminiferans
                                        Sponges                              56.5  epoch
                                                                                  Palaeocene
                    INVERTEBRATES
                                            Algae Vascular plants
                                              Sphenopsids
                                               Ferns                   35.5   epoch            Ambulacral
                                                                       35.5
                                                                              Eocene
                                                   Angiosperms
                                                 Cycads Ginkgos     23.5  epoch  Tertiary period  area
                                                     Conifers
                                                                          Oligocene
                                                                     Miocene
            Turreted                   PLANTS                5.2    epoch
            spire
                    Large                            1.64
        Ribs        body                         0  0.01     epoch
                                                             Pliocene
                    whorl        Large,
                                 elevated       OF YEARS  epoch  Quaternary perio d
                                                 MILLIONS
                                 eye           AGO (MYA)  epoch
                                                        Pleistocene
                                                      Holocene
                         Spiny,            Wide
                         segmented         head
                         body                     Claw                 Tiny
                                                                       tubercle
                                                                           Genital
                      Aperture                                             pore
                                             Spiny
                                             tail
                                                                        Carapace
          STRUTHIOLARIA           LEONASPIS               MUD CRAB                       CLYPEASTER
        (GASTROPOD MOLLUSK)      (TRILOBITE)             (CRUSTACEAN)                   (ECHINODERM)
                                                                                                        279
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