Sinonim 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)