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| Trilobita | ||
| Arthropoda | Nectaspida |
| Arthropoda | |||
| Arachnida | Trilobita | Mandibulata |
| Class Trilobita Order Agnostida Order Redlichiida Order Corynexochida Order Phacopida Order Lichida Order Proetida Order Harpetida Order Ptychopariida Order Asaphida Order Odontopleurida Order Nectaspida |
Trilobites Trilobite Systematics and Taxonomy Trilobites Through Geologic Time Trilobite Gallery Glossary References |
page MAK111205