Base of the evolutionary tree for Arrow worms (Chaetognatha)

← parent

• Arrow worms (Chaetognatha) (156 species)
  • Aphragmophora → (83 species)
    • Ctenodontina → (78 species)
      • Sagittidae → (77 species)
        • Aidanosagitta → (15 species)
        • Serratosagitta → (5 species)
        • Ferosagitta → (7 species)
        • Flaccisagitta → (5 species)
        • Parasagitta → (10 species)
        • Pseudosagitta → (3 species)
        • Decipisagitta → (2 species)
        • Zonosagitta → (5 species)
        • Solidosagitta → (4 species)
        • Sagitta → (19 species)
        • Mesosagitta minima
        • Caecosagitta macrocephala
      • Pterosagitta draco
    • Flabellodontina → (3 species)
      • Krohnitta subtilis
      • Krohnitta balagopali
      • Krohnitta pacifica
    • Bathybelos typhlops
    • Pterokrohnia arabica
  • Phragmophora → (51 species)
    • Spadellidae → (34 species)
      • Spadella → (20 species)
        • Spadella japonica
        • Spadella ledoyeri
        • Spadella gaetanoi
        • Spadella duverti
        • Spadella lainezi
        • Spadella moretonensis
        • Spadella angulata
        • Spadella birostrata
        • Spadella xcalakensis
        • Spadella anops
        • Spadella maxima
        • Spadella equidentata
        • Spadella boucheri
        • Spadella antarctica
        • Spadella nunezi
        • Spadella bradshawi
        • Spadella cephaloptera
        • Spadella valsalinae
        • Spadella kappae
        • Spadella interstitialis
      • Paraspadella → (10 species)
        • Paraspadella caecafea
        • Paraspadella anops
        • Paraspadella sheardi
        • Paraspadella gotoi
        • Paraspadella pulchella
        • Paraspadella pimukatharos
        • Paraspadella johnstoni
        • Paraspadella nana
        • Paraspadella schizoptera
        • Paraspadella legazpichessi
      • Bathyspadella → (2 species)
        • Bathyspadella oxydentata
        • Bathyspadella edentata
      • Calispadella alata
      • Hemispadella dauvini
    • Eukrohniidae → (14 species)
      • Eukrohnia → (13 species)
        • Eukrohnia macroneura
        • Eukrohnia bathypelagica
        • Eukrohnia proboscidea
        • Eukrohnia subtiles
        • arrow worm (Eukrohnia hamata)
        • Eukrohnia sinica
        • Eukrohnia calliops
        • Eukrohnia flaccicoeca
        • Eukrohnia fowleri
        • Eukrohnia kitoui
        • Eukrohnia bathyantarctica
        • Eukrohnia microneura
        • Eukrohnia minuta
      • Zahonya cestoda
    • Krohnittellidae → (3 species)
      • Krohnittella tokiokai
      • Krohnittella tokoikai
      • Krohnittella boureei
  • Heterokrohnia → (17 species)
    • Heterokrohnia mirabiloides
    • arrow worm (Heterokrohnia involucrum)
    • Heterokrohnia curvichaeta
    • Heterokrohnia bathybia
    • Heterokrohnia davidi
    • Heterokrohnia wishernae
    • Heterokrohnia heterodonta
    • Heterokrohnia longidentata
    • Heterokrohnia fragilis
    • Heterokrohnia discoveryi
    • Heterokrohnia furnestinae
    • Heterokrohnia mirabilis
    • Heterokrohnia wishnerae
    • Heterokrohnia murina
    • Heterokrohnia angeli
    • Heterokrohnia biscayensis
    • Heterokrohnia alvinae
  • Archeterokrohnia → (4 species)
    • Archeterokrohnia longicaudata
    • Archeterokrohnia docrickettsae
    • Archeterokrohnia palpifera
    • Archeterokrohnia rubra
  • Xenokrohnia sorbei

Other links

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• Wikipedia (language: uk)
• Wikipedia (language: id)
• Wikipedia (language: vi)
• Wikipedia (language: ko)
• Encyclopedia of Life
• NCBI (genetics)"
• Open Tree of Life

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