Palaeos		Scalidophora
Scalidophora		Dendrogram

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Ecdysozoa: Dendrogram

Abbreviated Dendrogram

BILATERIA
|--DEUTEROSTOMIA
`--+--SPIRALIA
   |
   `--ECDYSOZOA = paraphyletic SCALIDOPHORA?
      |--Markuelia
      |==Palaeoscolecida
      |--Kinorhyncha
      |==Priapozoa
      |  `--+--Priapulida
      |     `--+--Sirilorica
      |        `-- Loricifera
      `--+--NEMATOIDA
         `--PANARTHROPODA

Contents

Overview
Scalidophora
Palaeoscolecida
Priapozoa
Kinorhyncha
Loricifera
Priapulida
Dendrogram
References

Note: the following dendrogram is a slightly modified version of a dendrogram drawn by CKT for Palaeos org, which itself is based strongly on Dong et al 2004, cladogram, fig 3b; extant priapulids follow Mikko's phylogeny. This phylogeny is certainly less than satisfactory if the hypothesis of paraphyletic Priapozoa and Palaeoscolecida as ancestral ecdysozoans (e.g. Dzik and Krumbiegel 1989, Conway Morris & Peel 2010) , but we have retained it for now pending later revision MAK120422

EOL:Encyclopedia of Life
MH : Mikko's phylogeny
ToL Tree of Life

BILATERIA
|--DEUTEROSTOMIA
`--+--SPIRALIA
   |
   `--ECDYSOZOA  (= Introverta, Nematozoa, Cycloneuralia)  = paraphyletic SCALIDOPHORA? [Cephalorhyncha, Scalidorhyncha] =  paraphyletic Priapozoa? (stem "priapulida")
      |--Markuelia
      |--+--Ancalagon
      |  `--Fieldia
      |--+--Kinorhyncha [Echinoderida]  ToL  MH
      |   |   |--Homalorhagida
      |   |   `--Cyclorhagida
      |   `--+-- Loricifera ToL
      |       `--+--Priapulida  ToL EOL  MH
      |          |  |--Tubiluchidae
      |          |  |  |-- Meiopriapulus
      |          |  |  `-- Tubiluchus
      |          |  `--+-- Maccabeus [Maccabeidae]
      |          |    `--o Priapulidae
      |          |       |-- Halicryptus
      |          |       `--+-- Priapulites
      |          |          `--+-- Priapulopsis
      |          |             `--+-- Acanthopriapulus
      |          |                `-- Priapulus
      |          `--+--Selkirkia
      |             `--+--Palaeoscolecida
      |                |  |--Maotianshania
      |                |  `--+--Cricocosmia
      |                |     `--Palaeoscolex
      |                `--+--Ottoia prolifica
      |                   `--+--Louisella pedunculata
      |                      `--Scolecofurca
      `--+--NEMATOIDA
         `--PANARTHROPODA

dendrogram CKT070908, modified MAK120420