ammonites
†subfamily Hexagonariinae Bulvanker 1958 (horn coral)

Anthozoa - Stauriida - Disphyllidae

Parent taxon: Disphyllidae according to D. Hill 1981

Sister taxa: Cantabriastraea, Diffusolasma, Disphyllinae, Paradisphyllinae, Spongonariinae

Subtaxa: Haplothecia, Hexagonaria, Marisastrum

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Ecology: stationary epifaunal suspension feeder