Palaeos:		Chordata
The Vertebrates		References

Chordata : References

Chordata
|--Urochordata
|  |--Larvacea
|  |  |--Oikopleuridae
|  |  `-+--Kowalevskiidae
|  |    `--Fritillaridae
|  `--+--Ascidiacea
|     `--Thaliacea
`--+--Cephalochordata
   `--+--Haikouella 
      `--Vertebrata 

Caputi L, N Andreakis, F Mastrototaro, P Cirino, M Vassillo & P Sordino (2007), Cryptic speciation in a model invertebrate chordate. Proc. Nat. Acad. Sci. (USA) 104: 9364-9369.
Ascideacea.

Chen, J.Y., J. Dzik, G.D. Edgecombe, L. Ramskold and G.-Q. Zhouu. 1995. A possible Early Cambrian chordate. Nature 377:720-722.
Overview

Chen, J-Y, D-Y Huang & C-W Li (1999), An early Cambrian craniate-like chordate, Nature 402: 518-522.WWW 
Haikouella.  

Mallatt, J, J-Y Chen & ND Holland (2003), Comment on "A new species of Yunnanozoan with implications for deuterostome evolution", Science 300: 1372c.  WWW. 
Haikouella.

Nelson, J.S. 1994. Fishes of the World. 3rd Ed. John Wiley & Sons, New York, N.Y.
Overview

Seo, H-S, M Kube, RB Edvardsen, MF Jensen, A Beck, E Spriet, G Gorsky, EM Thompson, H Lehrach, R Reinhardt & D Chourrout (2001), Miniature genome in the marine chordate Oikopleura dioica. Science 294: 2506.
Oikopleuridae.

Shu, D-G & SC Morris (2003), Response to comment on "A new species of Yunnanozoan with implications for deuterostome evolution", Science 300: 1372d.  WWW. 
Haikouella

Swalla, BJ, CB Cameron, LS Corley & JR Garey (2000), Urochordates are monophyletic within deuterostomes. Sys. Biol. 49: 52-64.
Larvacea, Urochordata

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