シダズーン
A Cambrian genus from "the Chengjiang biota.":http://en.wikipedia.org/wiki/Maotianshan_Shales It had both features of vertebrate animals and arthropod. 

h4.External Link 

* "Wikipedia":http://en.wikipedia.org/wiki/Xidazoon 

h4.See also

* [[List of Animals]]

xidazoon