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Order Halichondrida Gray 1867 (demosponge)

Demospongea - Ceractinomorpha

PaleoDB taxon number: 146763

Parent taxon: Ceractinomorpha according to R. K. Bambach et al. 2007

Sister taxa: Agelasida, Burgundiidae, Halisarcida, Medfraspongia, Sigmatosclerophorida, Vaceletida

Subtaxa: Bubaridae, Cassianostroma, Halichondria, Ischnspongia, Ptilispongia

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Ecology: stationary epifaunal suspension feeder