CLASSIFICATION OF LIFE FORMS


AN OVERALL CLASSIFICATION


CLASSIFICATION BY KINGDOM

The original classification of life was by kingdom - originally five but now expanded to six kingdoms.


Each kingdom is further classified by Phylum, Class, Order, Family, Genus and Species (illustrated below for the snow fox).


CLASSIFICATION BY DOMAIN

A more recent classification uses three domains in what is termed the phylogenetic classification. Archaea is a recently discovered domain of 'extremophile bacteria' that could be very relevant to life beyond the Earth.



ASAAustralian Space Academy