566 - Heredity and Evolution 



PLANT KINGDOM 



DICOTYLEDONEAE 



MONOCOTYLEDONEAE 



PRIMITIVE VASCULAR PLANTS 

 [Eorly Tracheophytes) 



BROWN ALGAE 



(Phaeophyto 



RED ALGAE 



IRhodophyta 



FLAME ALGAE 

 (Pyrrophyt 



GOLDEN BROWN ALG 

 (Chrysophyta 



EUGIENOPHYTA 



BLUE GREEN ALGAi 

 (Cyartophyla 



HIGHER FUNG 

 (Eumycophyta! 



SLIME MOLDS 

 [MyxOTiycophyt 



MODERN BACTERIA 

 (SchizomycophyfaJ 



ANIMAL KINGDOM 



MARSUPIALS ^CENTAL ^ 



MODERN REPTILES 

 DINOSAURS 



y 



Zjt MONC 



MONOTREMES 

 EARLY MAMMALS 



MODERN AMPHIBIA 



EARLY AMPHIBIA MODERN 

 BONY FISH 



ARTHROPODS 

 PERIPATUS 



ANNELIDS 

 NEMERTINES 



FLATWORMS 

 [Platyhelminlhes} 



CTENOPHORES 

 COELENTERATES 



EARLY BONY FISH 

 JAWLESS FISH 



CEPHALOCHORDATA 

 Amphioxus] 



HEMICHORDATA 

 jrn worms) 



ECH1NODERMS 



PRIMITIVE 



"BLASTULOIDS" 



(Multicellular & Coloniol) 



^ 



HOLOZOIC FLAGELLATES 



(Aerobicl 



MODERN 

 PROTOZOA 



NICELLULAR GREEN PLANTS 



/ 



(produced 2 ) / 



EARLY COLORLESS CELLS 

 (Anaerobic; produced CO2) 



PRIMITIVE LIVING MATTER 

 (Subcellular; produced CO2) 



t 



FIRST ORGANIC MATTER 

 (see Chapter 101 



Fig. 29-11. Probable relations of the main phyla of plants and animals. 



cases like the Trilobita (Fig. 32-31), they be- Shortly thereafter (Silurian strata) the first 

 long to groups that are now extinct. land plants appear, followed (in the Silurian 

 Quite early in the Paleozoic era (Ordovi- and Devonian periods), by primitive amphib- 

 cian strata), fossil Vertebrata begin to be well ians and reptiles, which also began to in- 

 represented, as primitive fishlike forms, vade the land. The later strata of the Paleozoic 



