Crustacea Brünnich, 1772 see [unranked] Crustaceomorpha Chernyshev, 1960
   [unranked] †Oelandocarididae Haug, Maas & Waloszek, 2009
     1 Genus †Oelandocaris Müller, 1983
     2 Genus †Henningsmoenicaris Walossek & Müller, 1991
     3 Genus †Sandtorpia Haug, Maas & Waloszek, 2009