eukaryotes see Domain Eukaryota Chatton, 1925 Centroheliozoa Dürrschmidt & Patterson, 1987 see Class Centrohelea Kühn, 1926 1 Family Heterophryidae Poche, 1913 2 Family Raphidiophryidae Mikrjukov, 1996 3 Family Acanthocystidae Claus, 1874