eurypteroidea
Eu*ryp`te*roi"de*a, n. pl. Etym: [NL. See Eurypteroid.] (Paleont.) Defn: An extinct order of Merostomata, of which the genus Eurypterus is the type. They are found only in Paleozoic rocks. [Written also Eurypterida.]
Eu*ryp`te*roi"de*a, n. pl. Etym: [NL. See Eurypteroid.] (Paleont.) Defn: An extinct order of Merostomata, of which the genus Eurypterus is the type. They are found only in Paleozoic rocks. [Written also Eurypterida.]