6,5 50% tot                                                                                              25 90% tot

  8 Blütenpflanzen   10 Alpen      17 Saurier, Vögel      27 Nadelhölzer   30 Kriechtiere        42 Ozon genug        46 Wirbeltiere       60 Mehrzeller , Cambrische Explosion

      10 Warmblütler                                                                                                                                                                                                                        70 O Atmer

 2 Cortex   5 Limbysches System                                                                                         50 R - Komplex                                                                                                       80 Stammhirn