| Palæos: |  |
The Linnean System |
| SYSTEMATICS | Phylum |
| Page Back | Unit Up | Unit Back | Unit Home | Systematics Glossary | References |
| Palæos: | |
The Linnean System |
| SYSTEMATICS | Phylum |
| Page Back | Unit Up | Unit Back | Unit Home | Systematics Glossary | References |
| 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 - vertebrates and others), Arthropoda (animals with a jointed exoskeleton) Mollusca (animals with a shell-secreting mantle), Angiosperma (flowering plants), and so on. A number of traditional Phyla - e.g. Protozoa, possibly Arthropoda - are probably invalid (polyphyletic). |
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