ammonites
Spissiparies Botting 2005 (glass sponge)

Hexactinellida - Lyssacinosa - Malumispongiidae

Full reference: J. P. Botting. 2005. Exceptionally well-preserved Middle Ordovician sponges from the Llandegley Rocks Lagerstätte, Wales. Palaeontology 48(3):577-617

Parent taxon: Malumispongiidae according to J. P. Botting 2005

Sister taxon: Scaphiomanon

Subtaxa: Spissiparies minuta

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Ecology: stationary epifaunal suspension feeder