class Merostomata

Thesaurus

Noun

1.

class Merostomata - used in some classifications; includes the orders Xiphosura and EurypteridaMerostomataarthropod - invertebrate having jointed limbs and a segmented body with an exoskeleton made of chitinChelicerata, superclass Chelicerata - spiders; scorpions; horseshoe crabsorder Xiphosura, Xiphosura - horseshoe crabs and extinct formsEurypterida, order Eurypterida - extinct aquatic arthropods of the Paleozoic