( 44 ) 



TABLE XVI. 



Systematic Survey of tlie most Important Stages in the Animal 



Ancestral Line of Man. 



M N = Boundary between the Invertebrate and the Vertebrate Ancestors. 



Epochs of the 

 Organic 



Histoi y of the 

 Earth. 



Geological Periods 



of the 



Organic History 



of the Earth. 



Animal 



Ancestral Stages 



of 



Man. 



Nearest 



Living Relatives 



of the 



A ncestral Stages, 



I. 



Ajrchilithic 



or 



Primordial 



Epoch 



1. Laurentian Period 

 •» 2. Cambrian Period 

 3. Silurian Period 



1. Monera 

 (^Monera) 



2. Oldest AmoebEe 



3. Amceboid Societies 



(^Si/namcebia) 



4. Ciliated planulie 



(Planceadre) 

 6. Primitive Intes- 

 tinal animals 

 {Gastrceadfe) 

 6. Primitive Worms 

 (^Arckelminthes) 



1. Soft-worms 

 (Scolecida) 



8. Chorda animals 

 (jChordonia) 



JBathybius 

 Protamoeba 

 ( Simple AmoebiE 

 i {Automceba') 



I Morula larvas 

 J Blastula larvsc 



M-' 



< Gastrula larvae 



( Gliding Worms 

 \ (Turhellaria) 



)? Between the glid- 

 ing worms and the 

 Sea-squirts 

 J Sea-Bquirts (Ascidiai) 

 \ (Appendicularii ) 

 N 



9. Skull-less animals 



(^Acrania) 

 10. Round-mouths 



(^Cycloftomi) 



11. Primitive Fishes 



{Selackii) 



Lancelets 



(Amphioxi) 



Lampreys 



{Petromyzonta) 



Sharks 



(^Squalacei) 



II. 



Palgeolithic 



or 



Primary 



Epoch 



Devonian Period 

 , Coal Period 

 Permian Period 



12. Salamander Fishes 



(Dipneusta) 



13. Gilled Amphibia 

 {Sozobranchia) 



14. Tailed Amphibia 

 ( Sozura) 



ni. 



Mesolithic 



or 



Secondary 



Epoch 



, Triassic Period 

 Jurassic Period 

 Chalk Period 



15. Primitive Am- 



niota 



(Protamnia) 



16. Primitive Mam- 



mals 

 (Promavi ma lia) 



17. Pouched Animals 

 (Ma rs up ialia) 



Mud fish • 

 (Protqptera) 

 Siren (Proteus) 

 arid Axolotl 



(SiredonJ 



Water-newt 



( Tr iton) 



i Between Tailed 

 Amphibians and 

 Beaked animals 



Beaked animals 

 (Monotremaj 



Pouched Rats 

 (^Didelphyes) 



V. J 13. 



Quaternary 1 14, 

 Epoch 



J Lori {Sten(yps) 

 \ Maki (Lemur) 

 i Nose Apes 



\ Holy Apes 



t Gorilla, Chimpan- 

 zee, Orang, 

 Gibbon 

 J Cretins or Micro- 

 * cephall 



Diluvial Period 

 Alluvial Period 



22. Men capable of 

 speech 



Australians and 

 Papuans 



