Monophyletic taxon: Tetractinellida Marshall, 1876 [Borchiellini et al., 2004] (sponge)

Entity:

Concise hierarchy

Defined by the first ancestor to possess the apomorphy as inherited by

Geodia cydonium O.F. Müller, 1798

Ref: C. Borchiellini et al., 2004: 834 ("tetractines").

Democlavia ([unranked]) Sperling et al., 2009

Ref: S.M. Adl et al., 2012: table 2 (p. 439).

Heteroscleromorpha ([unranked]) [Cárdenas et al., 2012]

Ref: P. Cárdenas et al., 2012: table 2.11 (p. 174).

Democlavia ([unranked]) Sperling et al., 2009

Ref: S.M. Adl et al., 2012: table 2 (p. 439).