Palaeos		Deuterostomia
Deuterostomia		Dendrogram

Deuterostomia Dendrogram

Metazoa
|--Porifera (paraphyletic?)
`--+--Radiata
   `--Bilateria
      |--Deuterostomia  
      |  |--Vetulicolia
      |  `--+--Chordata  
      |     `--Ambulacraria
      |        |--Hemichordata
      |        `--+--Vetulocystidae
      |           `--Homalozoa (grade)
      |              `--Echinodermata
      `--Protostomia
         |--Ecdysozoa
         `--Lophotrochozoa

Dendrogram

o : crown group
^ : stem group
¶ : paraphyletic basal radiation
@ : apomorphy-based clade
* : similarity-based (classical) taxon
? : basis uncertain or not yet established

o BILATERIA (including ?some/?all "Acoelomates") (= starfish + silverfish)
|--^ DEUTEROSTOMIA  (= starfish > silverfish)
|  |--* Vetulicolia X 
|  |  |--+--Xidazoon X  
|  |  |  `--Didazoon X  
|  |  `--+--Pomatrum X  
|  |     `--Vetulicola X  
|  `--+--@ CHORDATA (notochord present, or ^: movie stars > sea stars) 
|     `--o Ambulacraria (hemichordates + echinoderms)
|        |--? Hemichordata 
|        `--+--Xenoturbella
|           `--+--* Vetulocystidae X  
|              |  |--Vetulocystis X  
|              |  `--Dianchicystis X  
|              `--o HOMALOZOA (grade, redefined here as Rhenocystis + Echinus)
|                 `--+--* Stylophora X (or possibly ¶)
|                    `--+--* Soluta X  
|                       `--o ECHINODERMATA (living echonoderm crown group)
`--PROTOSTOMIA