Base of the evolutionary tree for Spiralia

• Spiralia (150801 species)
  • unnamed group 914955 → (147134 species)
    • Trochozoa → (121944 species)
      • Molluscs (Mollusca) → (89371 species)
        • unnamed group 974434 → (87655 species)
        • unnamed group 972719 → (1716 species)
      • unnamed group 940146 → (32573 species)
        • Segmented worms (Annelida) → (22079 species)
        • unnamed group 940147 → (10494 species)
    • unnamed group 914956 → (25190 species)
      • flatworms (Platyhelminthes) → (24307 species)
        • unnamed group 927151 → (12995 species)
        • Catenulida → (120 species)
        • monogeneans (Monogenea) → (5543 species)
        • Rhabditophora → (5649 species)
      • gastrotrichs (Gastrotricha) → (883 species)
        • Chaetonotida → (497 species)
        • Macrodasyida → (386 species)
  • Gnathifera → (3667 species)
    • unnamed group 911393 → (3563 species)
      • Syndermata → (3562 species)
        • rotifers (Rotifera) → (2211 species)
        • spiny-headed worms (Acanthocephala) → (1351 species)
      • Limnognathia maerski
    • Jaw Worms (Gnathostomulida) → (104 species)
      • Bursovaginoidea → (94 species)
        • Gnathostomulidae → (23 species)
        • Pterognathiidae → (18 species)
        • Mesognathariidae → (7 species)
        • Onychognathiidae → (9 species)
        • Austrognathiidae → (29 species)
        • Agnathiellidae → (3 species)
        • Clausognathia suicauda
        • Paucidentula anonyma
        • Problognathia minima
        • Gnathostomaria lutheri
        • Rastrognathia macrostoma
      • Filospermoidea → (10 species)
        • Haplognathia simplex
        • Haplognathia rubromaculata
        • Haplognathia ruberrima
        • Haplognathia filum
        • Haplognathia asymmetrica
        • Haplognathia lunulifera
        • Haplognathia rosea
        • Haplognathia belizensis
        • Haplognathia gubbarnorum
        • Haplognathia rufa