﻿PALAEONTOLOQ-Y 
  

  

  131 
  

  

  Classification 
  of 
  Animal 
  Life 
  

  

  Sub-kingdoms 
  Classes 
  

  

  r 
  Mammals 
  

  

  Vertebrates 
  

  

  Examples 
  

  

  Man, 
  cow, 
  horse, 
  sheep, 
  dog, 
  whale, 
  

   etc. 
  

   Birds 
  Owl, 
  turkey, 
  hawk, 
  sparrow, 
  etc. 
  

  

  1 
  Reptiles 
  Serpents, 
  lizard, 
  tortoise 
  

  

  I 
  Amphibians 
  Frog, 
  toad, 
  salamander 
  

   L 
  Fishes 
  

  

  

  '^Cephalopods 
  cuttlefish 
  

   Pteropods 
  

  

  Gasteropods, 
  snail, 
  etc. 
  

   MoUusks 
  i 
  Lamellibranchs, 
  clam, 
  oyster, 
  etc. 
  

   Brachiopods 
  

   Tunicates 
  

   Bryozoans 
  

  

  Articu 
  

  

  f 
  Crustaceans, 
  trilobite, 
  crab, 
  lobster 
  

  

  lates 
  < 
  Insects 
  

   l.Worms 
  

  

  Radiates 
  Corals, 
  starfish, 
  etc. 
  

   Protozoa 
  Sponges, 
  foraminifera, 
  etc. 
  

  

  This 
  classification 
  though 
  time-honored 
  and 
  convenient 
  in 
  ele- 
  

   mentary 
  palaeontology, 
  has 
  been 
  superseded 
  among 
  zoologists 
  by 
  

   one 
  slightly 
  different, 
  which 
  indicates 
  more 
  truthfully 
  the 
  rela- 
  

   tions 
  of 
  the 
  various 
  groups 
  or 
  branches 
  in 
  point 
  of 
  development. 
  

  

  