Phylum Porifera Grant, 1836 - sponges Class Hexactinellida Schmidt, 1870 - hexactinellids Order †Inaecoelida Senowbari-Daryan & García-Bellido, 2002 [monotypic] see Order Innaecoeliida Boiko, 1990 1 Family †Inaecoeliidae Senowbari-Daryan & García-Bellido, 2002 see Family Innaecoeliidae Boiko, 1990