cephalochordata Definition

subphylum cephalochordata, lancelets, phylum, cephalochordate, chordata, chordate genus, chordate, superphylum, ectoprocta, entoproct, protochordate, amniota, arthropodal, astrophyton, subphylum, acaleph, arthropoda, sea spider, chordate family, gastrotrich, acanthocephalan, vertebrate, basket star, coelomate, onychophoran, ctenophore genus, hydractinian, merostomata, scaphopoda, pelycosauria, phoronid, vertebrata, pseudocoelomate, echinoderm genus, polymastigina, cyclostomata, urochordate, cnidaria, stomatopoda, ectoproct, heterostracan, acoelomate, rhizopoda, ostracodermi, worm family, prototheria, ascaridae, fissurella, xiphosura, agnathan, mollusca, labyrinthodontia, invertebrate, dinoflagellata, trochosphere, protoctista, amoebida, therapsida, euryalida, parazoan, synapsida, epistome, inferobranchian, platyhelminthes, holocephali, haemosporidia, myxinidae, mycoplasmatales, rhizopod, alcyonaria, testacean, arthropod, animal order, madreporaria, lancelet, coniferophyta, pedipalpi, pennatula, coelenterate genus, ceratopsia, cyclostome, moss animal, marginocephalia, baenomere, pholad, chimaeridae, solenogastres, taeniidae, chelicerate, myaceae, hemichordate, ascidiaceae, dinocerata, echinoderm, gorgonacea, sea pen, echinodermata, sarcodina, mollusk family, siphonophora,