Hexactinellida - Lyssacinosa

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: Lyssacinosa according to J. P. Botting 2005

Sister taxa: Brachiospongioidea, Euplectellidae, Flexuospiculata, Leucopsacasiidae, Lumectospongiidae, Stauractinellidae, Acanthospongia, Calathospongia, Caulophacus, Colpospongia, Crateromorpha, Euplectella, Foerstella, Lasiothrix, Malumispongium, Oncosella, Opeamorphus, Palaeosaccus, Proeuplectella, Pyritonema, Regardrella, Rosella, Testispongia, Rossellidae, Leucopsacidae

Subtaxa: Brevicirrus arenaceus

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Type: Brevicirrus arenaceus

Ecology: stationary epifaunal suspension feeder