Gosseletina wanneri (FOSSIL) Hamlet, 1928 †
Platyteichum waterhousei (FOSSIL) (R. Etheridge jr.,1898 †)
Euconospira waterlooensis (FOSSIL) (Weller, 1916 †)
Baylea weiningensis (FOSSIL) Xi, 1994 †
Ananias welleri (FOSSIL) (Newell, 1935 †)
Hypselentoma welleri (FOSSIL) A. Thomas, 1940 †
Neilsonia welleri (FOSSIL) Thein & Nitecki, 1974 †
Eoangyomphalus weyanti (FOSSIL) Blodgett & al., 1999 †
Ananias weyeri (FOSSIL) Heidelberger & al.,2009 †
Cataschisma winkleri (FOSSIL) E.F.R.K. Koken& J. Perner, 1925 †
Pleurorima wisbeyensis (FOSSIL) (Lindström, 1884 †)
Dictyotomaria wortheni (FOSSIL) (Weller, 1916 †)
Baylea yabeshigerui (FOSSIL) O. Kobayashi, 1931 †
Globodoma yakowlewi (FOSSIL) Mazaev, 2006 †
Dictyotomaria yochelsoni (FOSSIL) Thein & Nitecki, 1974 †
Glyptotomaria yochelsoni (FOSSIL) Knight 1945 †
Nordospira yochelsoni (FOSSIL) Sabattini, 1995 †
Nipponomaria yokoyamai (FOSSIL) (I. Hayasaka, 1943 †)
Austroneilsonia yooi (FOSSIL) Cook & A. Nützel, 2005 †
Baylea yvanii (FOSSIL) (Léveillé, 1835 †)