†family Halichondritidae Rigby 1986 (demosponge)

Demospongea - Protomonaxonida - Halichondritidae

Parent taxon: Protomonaxonida according to J. K. Rigby and P. von Bitter 2005

Sister taxa: Choiidae, Hamptoniidae, Hazeliidae, Leptomitidae, Lobatospongia, Piraniidae, Sollasellidae, Takakkawiidae, Tethyidae, Ulospongiellidae, Wapkiidae

Subtaxa: Halichondrites Pohlispongia

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Ecology: stationary intermediate-level epifaunal suspension feeder

Distribution:

• Jurassic of Germany (1 collection)

• Carboniferous of United States (1: Illinois)

• Cambrian of Canada (7: British Columbia), China (8)

Total: 17 collections each including a single occurrence

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