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Taxon:
Subclass
Lithistida
Schmidt, 1870
(sponge)
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Hierarchy
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Entity:
Demospongiae (Class) - demosponges
..Clavaxinellida (Subclass)
..Haploscleromorpha (Subclass)
..Heteroscleromorpha (Subclass)
..†Inflexiostella (Genus)
..†Karatubulus (Genus)
..Keratosa (Subclass)
..Myceliospongia (Genus)
..Myxospongiae (Subclass)
..†Permosphincta (Order)
..Lithistida (Subclass)
....Arabescula (Genus)
....†Atractosella (Genus)
....†Belemnospongia (Genus)
....Collectella (Genus)
....†Criccospongiidae (Family)
....†Hippalimus (Genus)
....†Incrustospongia (Genus)
....Megalithistida (Order)
....Monalithistida (Order)
....†Orchocladina (Order)
....†Petrosites (Genus)
....Plakidium (Genus)
....Poritella (Genus)
....Spirosclerophorida (Order)
....†Syltrochos (Genus)
....Tetralithistida (Order)
Basic information
Period
:
Cambrian - Present [541 Ma - present]
Status
:
extant
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Last updated:
28 Aug 2026