cephalaspida
1. [ noun ] (biology,zoology) extinct group of armored fishlike vertebrates; taxonomy is not clear
Synonyms: suborder_Osteostraci suborder_Cephalaspida Osteostraci
Related terms: animal_order Ostracodermi osteostracan
Similar spelling:   cephalaspid
  cephalosporin
  cephalexin
  cephalic_index
  cephalochordate
  Cephalochordata