Talk:Deuterostome/Archive 1

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Is the placement of Deuterostomia as a subkingdom typical? I've seen it placed as a superphylum of the subkingdom Bilateria, but more often as an unranked group.--Josh Grosse

I think you're right. I've never heard them called a subkingdom and my General bio text doesn't say anything about placement. Although I do remember other instructors of mine say that they are a type of superphylum since several Deuterostomia phyla all have similar zygote cleavage. --maveric149

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State of arts in the phylogeny of deuterostomes

deuterostoma
- ? mitrata (+) (carpoides)
- ambulacraria
  - hemicordata
    - enteropneusts
    - pterobranchia
  - echinodermata
- chordata
  - urochordata
    - larvaceans
    - styleid + pyurid ascidies
    - molgulid ascidies
    - phlebobranch ascidies + thaliaceans
    - ? vetulicolia (+)
  - others chordata (not named actually)
    - cephalochordata
    - craniata (vertbrates)

Fenkys 16:01, 3 Jan 2004 (UTC)