fossil marine animal genera Linnaeus, 1758 - animals
   Phylum †Problematica Andrews, 1970
     1 Class †Cambroclavida Conway Morris & Chen, 1991
     2 Class †Coeloscleritophora Bengtson & Missarzhevsky, 1981
     3 Class †Cribricyathea Vologdin, 1961
     4 Class †Dinocardia nom. null. - anomalocarids see Class Dinocaridida Collins, 1996
     5 Class †Machaeridia Withers, 1926
     6 Class †Multiplacophora Hoare & Mapes, 1995 see Order Multiplacophora Hoare & Mapes, 1995
     7 Class †Tommotiida Missarzhevsky, 1970
     8 Class †uncertain