Palaeos		Ecdysozoa
Metazoa		Dendrogram

Ecdysozoa: Dendrogram

BILATERIA
|--DEUTEROSTOMIA
`--Protostomia 
   |--SPIRALIA
   |
   `----ECDYSOZOA = paraphyletic Scalidophora?
      |==Palaeoscolecida
      |==Priapozoa
      |  |--Kinorhyncha
      |  `--+--Priapulida
      |     `-- Loricifera
      `--+--Nematoida
         |   |--Nematoda
         |    `--Nematomorpha
         `--Panarthropoda
            |--Tardigrada
            `--+--Onychophora
                `--+--Dinocaridida
                   `--ARTHROPODA

Traditional Ecdysozoan phylogeny. This phylogeny is almost certainly incorrect, in view of Scalidophora as most likely equivalent to stem Ecdysozoa (Dzik & Krumbiegel 1989,Budd 2001, Conway Morris & Peel 2010), and intermediate forms like Facivermis (Liu et al 2006) and Mureropodia (Vintaned Gamez et al 2011). bridging the worm-panarthropod divide, but has been left unrevised for now. MAK120423

BILATERIA
|--DEUTEROSTOMIA
`--Protostomia 
   |--SPIRALIA
   |
   `----ECDYSOZOA
           |--SCALIDOPHORA
           |  |-- Markuelia
           |  |==Palaeoscolecida
           |  `--+--Kinorhyncha
           |     `--+--Sirilorica
           |        `--+-- Loricifera
           |           `--Priapulida
           `--+--NEMATOIDA
              |    |--Nematoda
              |    `--Nematomorpha
              `--PANARTHROPODA 
                   |--Mureropodia
                   `--+--Aysheaia
                      `--+--Tardigrada
                         `--+--Xenusiidae
                            |--Orstenotubulus
                            |--+--Antennacanthopodia
                            |  `--Euonychophora
                            |     |--Helenodora
                            |     `--+--Peripatopsidae
                            |         `--Peripatidae
                            `--+--Microdictyon
                                |--Archonychophora
                                |  |--Hallucigenia
                                |  `--Luolishaniidae
                                |--Diania
                                `--+--Megadictyon
                                   `--+--Kerygmachela
                                      `--+--Pambdelurion 
                                         `--+--Opabinia
                                            `--+--Anomalocarididae
                                                |  |--Hurdia
                                                |  `--+--Anomalocaris
                                                |     `--Laggania
                                                `--+--Schinderhannes
                                                   `--ARTHROPODA