ANNELID AND ARTHROPOD DIVERSITY
Annelid and Arthropod Taxonomy
| Phylum | Subphylum | Class | Subclass | Order |
| Annelida (segmented round worms) |
Polychaeta (polychaetes - marine worms) |
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| Oligochaeta (earthworms and segmented roundworms) |
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| Hirudinea (leeches) |
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| Arthropoda (arthropods) |
Trilobita (trilobites) |
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| Chelicerata (chelicerates) |
Merostomata (horseshoe crabs) |
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| Arachnida (modern terrestrial chelicerates) |
Scorpiones | |||
| Araneae | ||||
| Acari | ||||
| Crustacea (crustaceans - aquatic arthropods with mandibles and mostly biramous appendages) |
Branchipoda (branchiopods) |
Anostraca | ||
| Cladocera | ||||
| Maxillopoda (maxillopods) |
Copepoda | |||
| Cirripedia | ||||
| Malacostraca (malocostracans) |
Decopoda | |||
| Amphipoda | ||||
| Isopoda | ||||
| Uniramia (arthropods with uniramous appendages and mandibles) |
Diplopoda (millipedes) |
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| Chilopoda (centepeds) |
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| Insecta (insects) |
Collembola | |||
| Odonata | ||||
| Blattodea | ||||
| Isoptera | ||||
| Orthoptera | ||||
| Hemiptera | ||||
| Homoptera | ||||
| Anoplura | ||||
| Coleoptera | ||||
| Hymenoptera | ||||
| Siphonaptera | ||||
| Diptera | ||||
| Lepidoptera |
Click here to see line drawings of representatives of the Phylum Arthropoda