Hexactinellida - Hexactinosa - Craticulariidae

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

Sister taxa: Botroclonium, Intextum, Laocoetis, Leptolacis, Scipiospongia

Subtaxa: Pachyascus batalleri, Pachyascus formosus, Pachyascus lopatinensis, Pachyascus punctatus

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Ecology: stationary epifaunal suspension feeder