Family Petrosiidae van Soest 1980 (demosponge)

Demospongiae - Haplosclerida - Petrosiidae

Parent taxon: Haplosclerida according to R. M. Finks et al. 2004

Sister taxa: Calcifibrospongiidae, Corralio, Desmacidonidae, Esperites, Eurydiscites, Euzkadiellidae, Haliclonidae, Newellidae, Petrosistroma, Thalamnohaliclona

Subtaxa: Petrosia Propetrosia

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Type: Petrosia

Ecology: stationary epifaunal suspension feeder

Distribution:

• Eocene of Spain (1 collection)

• Cretaceous of Italy (1)

Total: 2 collections each including a single occurrence

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