Deuterostomia
Deuterostomia Dendrogram
Metazoa
Metazoa Metazoa Metazoa Time

Deuterostomia Dendrogram

Metazoa ├─Porifera (paraphyletic?) └─┬─Radiata └─Bilateria ├─Deuterostomia │ ├─Vetulicolia │ └─┬─Chordata │ └─Ambulacraria │ ├─Hemichordata │ └─┬─Vetulocystidae │ └─Homalozoa (grade) │ └─Echinodermata └─Protostomia ├─Ecdysozoa └─Lophotrochozoa
  

Dendrogram

─○ : crown group ─◄ : stem group ══ : paraphyletic basal radiation ─♦ : apomorphy-based clade ─✶ : similarity based classical taxon ─? : basis not yet established
○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) │ └─○Ambulacraria (hemichordates + echinoderms) │ ├─?Hemichordata │ └─┬─Xenoturbella │ └─┬─✶Vetulocystidae X │ │ ├─Vetulocystis X │ │ └─Dianchicystis X │ └─○Homalozoa (grade, redefined here as Rhenocystis + Echinus) │ └─┬─✶Stylophora X(or possibly paraphyletic) │ └─┬─✶Soluta X │ └─○Echinodermata (living echonoderm crown group) └─Protostomia
contact us
page uploaded 7 April 2002,
last modified CT050820
checked ATW050724