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Crista
Taxonomy
Crista was named by Tsyganko (1971) [Sepkoski's age data: D Give]. It is not extant.
It was assigned to Fasciphyllidae by Hill (1981); and to Rugosa by Sepkoski (2002).
It was assigned to Fasciphyllidae by Hill (1981); and to Rugosa by Sepkoski (2002).
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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. †Crista Tsyganko 1971
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Diagnosis
No diagnoses are available