Cristozoa

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Cristozoa is a grouping of animals possessing neural crest and derivatives.^[1]

It includes Haikouella and Yunnanozoon.^[2]

References

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Extant phyla of kingdom Animalia

(Supergroup

P
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Cnidaria (corals, anemones, hydrozoans, jellyfish, myxozoans)

B
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Xenacoelomorpha	Xenoturbellida (Xenoturbella) Acoelomorpha (acoels, nemertodermatids)

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Chordata (lancelets, tunicates, craniates)
Ambulacraria	Hemichordata (acorn worms, pterobranchs) Echinodermata (starfish, sea urchins and relatives)

P
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basal / incertae sedis	Chaetognatha (arrow worms)

Ecdysozoa
(molting animals)

Incertae sedis	Loricifera
Scalidophora	Kinorhyncha (mud dragons) Priapulida (penis worms)
Nematoida	Nematomorpha (horsehair worms) Nematoda (roundworms)
Panarthropoda	Tardigrada (waterbears) Onychophora (velvet worms) Arthropoda (arthropods)

Platytrochozoa

Rouphozoa

Orthonectida¹ Dicyemida (Rhombozoa)¹ Mollusca (molluscs) Nemertea (ribbon worms) Annelida (ringed worms)
Lophophorata	Brachiopoda (lamp shells) Phoronida (horseshoe worms) Bryozoa (Ectoprocta) (moss animals)
Clade	Cycliophora (Symbion) Entoprocta (Kamptozoa)

Incertae sedis

Dendrogramma

Dubious

Monoblastozoa (Salinella)

Obsolete

Now in Arthropoda	Pentastomida (tongue worms)
Now in Annelida	Sipuncula (peanut worms) Echiura (spoon worms) Pogonophora (giant tube worms) Vestimentifera
Now in Cnidaria	Myxozoa
Polyphyletic	Molluscoida Aschelminthes Gephyrea Coelenterata Annulata

¹Mesozoans

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