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Xysteria
Taxonomy
Xysteria was named by Pomel (1883) [Sepkoski's age data: C l].
It was assigned to Palechinida by Kier (1966); and to Echinocystitoida by Sepkoski (2002).
It was assigned to Palechinida by Kier (1966); and to Echinocystitoida by Sepkoski (2002).
Synonymy list
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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. †Xysteria Pomel 1883
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Diagnosis
No diagnoses are available