Classification of Sashida et al. 2000

Or. Nassellaria Ehrenberg 1875
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Fm. †Ruesticyrtiidae Kozur and Mostler 1979
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G. †Pararuesticyrtium Kozur and Mostler 1981
Fm. Actinommidae Haeckel 1862
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G. †Thaisphaera Sashida and Igo 1992
Fm. Sponguridae Haeckel 1862
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G. †Pseudospongoprunum Wakamatsu et al. 1990