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Definition of Order eurypterida
1. Noun. Extinct aquatic arthropods of the Paleozoic.
Exact synonyms: Eurypterida
Generic synonyms: Animal Order
Group relationships: Class Merostomata, Merostomata
Member holonyms: Eurypterid
Generic synonyms: Animal Order
Group relationships: Class Merostomata, Merostomata
Member holonyms: Eurypterid