Superregnum: Eukaryota
Cladus: Unikonta
Cladus: Opisthokonta
Cladus: Holozoa
Regnum: Animalia
Subregnum: Parazoa
Phylum: Porifera
Classis: Calcarea
Subclassis: Calcaronea
Ordo: Baeriida
Familia: Petrobionidae
Genus: Petrobiona
Name
Petrobionidae Borojevic, 1979
References
Borojevic, R. 1979. Evolution des Spongiaires Calcarea. Pp. 527-530. In: Lévi, C. & Boury-Esnault, N. (Eds), Biologie des Spongiaires -Sponge Biology. Colloques Internationaux du Centre National de la Recherche Scientifique, Paris. 291: 1–533.
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