How are animals classified ?
Animals are classified in a seven step hierarchical nomenclature procedure. They are grouped together in one kingdom called Animalia.
The best known phyla are:
Porifera
Cnideria
Mollusca
Platyhelminthes
Nematoda
Arthropoda
Annelida
Echinodermata
Chordates
Further the particular animal is divided on basis of class.