16 



ELEMENTS OF PALAEONTOLOGY 



OUTLINE CLASSIFICATION OF THE ANIMAL KINGDOM. 



Sub-Kingdoms. Sub-Branches. 



I. PROTOZOA 



II. COELENTERATA 



III. ECHINODERMATA 



IV. VERMES 



V. MOLLUSCOIDEA 



VI. MOLLUSCA . 



VII. ARTHROPODA 



VIII. VERTEBRATA 



I. Porifera . 



II. Cnidaria . 



I. Pelmatozoa 



II. Asterozoa 



III. Echinozoa 



[. Branchiata 



[. Tracheata 



Classes. 



1. Rhizopoda. 



2. Flagellata. 1 



3. Infusoria. 1 



4. Gregarina. 1 



1. Spongiae. 



'I. Anthozoa. 



2. Hydrozoa. 



[1. Crinoideal 



2. Cystoidea.l 



3. Blastoideci 



:1. Ophiuroidea. 



2. Aster oidea. 



1. JSchinQidfid- 



2. Holothurioidea. 



1. Platyhelminthes. 1 



2. Nemathelminthes. 



*3. Gephyrea. 



4. Eotifera. 1 



5. AtinelidcL. 



:1. Bnjozoa. 



2. Bracliiopoda. 



1. Lamellibranchiat'a. 

 I. Scaphopoda. 



3. Amphineura. 



4. Gastropoda. 



. Cephalopoda. 



1 . Crustacea. 



r 1 . Myriopoda. 



2. Arachnoid <.'.. 



3. Insect a. 



1. 



2. 



3. Septilia. 



4. J.WS. 



5. Mammalia. 



1 Unknown in the fossil state. 



