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Acanthosphaera
Taxonomy
Acanthosphaera was named by Duan (1984) [Sepkoski's age data: Cm Atda-u Sepkoski's reference number: 1006].
It was assigned to Problematica by Duan (1984) and Sepkoski (2002).
It was assigned to Problematica by Duan (1984) and Sepkoski (2002).
Species lacking formal opinion data
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If no rank is listed, the taxon is considered an unranked clade in modern classifications. Ranks may be repeated or presented in the wrong order because authors working on different parts of the classification may disagree about how to rank taxa.
G. †Acanthosphaera Duan 1984
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Diagnosis
No diagnoses are available