#class_Merostomata__Merostomata  used in some classifications; includes the orders Xiphosura and Eurypterida
  supertype:  #arthropod  invertebrate having jointed limbs and a segmented body with an exoskeleton made of chitin
  member:  #order_Xiphosura  #order_Eurypterida
  member of:  #superclass_Chelicerata__Chelicerata  spiders; scorpions; horseshoe crabs
     member of:  #phylum_Arthropoda__Arthropoda  jointed-foot invertebrates: arachnids; crustaceans; insects; millipedes; centipedes
        member of:  #kingdom_Animalia__Animalia__animal_kingdom  taxonomic kingdom comprising all living or extinct animals

No statement uses or specializes #class_Merostomata; click here to add one.