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Tetragonocrinus
Taxonomy
Tetragonocrinus was named by Yeltyscheva (1964) [Sepkoski's age data: O Aren-l O Llvi-l]. It is not extant. It is the type genus of Tetragonocrinidae.
It was assigned to Tetragonocrinidae by Ausich (1998); and to Disparida by Sepkoski (2002).
It was assigned to Tetragonocrinidae by Ausich (1998); and to Disparida 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. †Tetragonocrinus Yeltyscheva 1964
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Diagnosis
No diagnoses are available