order eurypterida
English Thesaurus
1. extinct aquatic arthropods of the Paleozoic (noun.animal)
hypernym | : | animal order, |
definition | : | the order of animals (noun.animal) |
member holonym | : | eurypterid, |
definition | : | large extinct scorpion-like arthropod considered related to horseshoe crabs (noun.animal) |
member meronym | : | class merostomata, merostomata, |
definition | : | used in some classifications; includes the orders Xiphosura and Eurypterida (noun.animal) |
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