Author's note: these pages were written some years ago. I am not planning to update them. For a more current coverage, see the link to palaeos com Palaeos website (to which many links on these pages point to anyway. More info here

Phylum

 
Kingdom 
Phylum 
Class 
Order 
Family 
Genus 
Species
Referred to as 'Division" in the case of Plants and Bacteria.  In the standard Linnean system (and taxonomic systems based on it), a Phylum is the taxonomic category between Kingdom and Class.  A phylum is a major ranking of organisms, defined according to the most basic body-parts shared by that group.  e.g. Chordata (animals with a notochord - link to palaeos com vertebrates and others), link to palaeos com Arthropoda (animals witha  jointed exoskeleton) link to palaeos com Mollusca (animals with a shell-secreting mantle), Angiosperma (flowering plants), and so on.  A number of traditional Phyla - e.g. Arthropoda, Protozoa, etc - are probably invalid (polyphyletic).
 
 
 
 
 
 
to Vertebrate page
Systematics page




Page History

page uploaded 13 December