Dodatak:Popis kolutićavaca, W
Wa
uredi, Wapsa , Watelio
We
uredi, Websterinereis , Weddellia , Weixiserpula , Wesenbergia , Westheideia
Wi
uredi, Willeysthenelais
- †Wiwaxia corrugata (Matthew, 1899) [1]
- †Wiwaxia taijiangensis Zhao, Qian & Lee, 1994[2]
Porodica Wiwaxiidae Walcott, 1911 †
uredi- Rod Wiwaxia