Classification of Won and Below 1999
Cl. Polycystina Ehrenberg 1838
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Fm. †Archeoentactiniidae Won, in Won and Below 1999
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G. †Archeoentactinia Won and Below 1999
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†Archeoentactinia angulata Won and Below 1999
†Archeoentactinia delicata Won and Below 1999
†Archeoentactinia hexactinia Won and Below 1999
†Archeoentactinia incaensis Won and Below 1999
†Archeoentactinia tetractinia Won and Below 1999
Fm. †Palaeospiculumidae Won and Below 1999
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G. †Palaeospiculum Won and Below 1999
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†Palaeospiculum arcussimile Won and Below 1999
†Palaeospiculum dendroeides Won and Below 1999
†Palaeospiculum devoncourtensis Won and Below 1999
†Palaeospiculum georginaensis Won and Below 1999
†Palaeospiculum parvum Won and Below 1999
†Palaeospiculum radiatum Won and Below 1999
†Palaeospiculum reedae Won and Below 1999
G. †Spongomassa Won and Below 1999
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†Spongomassa gigantea Won and Below 1999
†Spongomassa nannosphaera Won and Below 1999