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Micraster (Plesiaster)
Taxonomy
Plesiaster was named by Pomel (1883) [Sepkoski's age data: K Sant K Maes Sepkoski's reference number: 577].
It was reranked as Micraster (Plesiaster) by Stephenson (1941).
It was assigned to Micraster by Stephenson (1941); to Brissidae by Fischer (1966); and to Spatangoida by Sepkoski (2002).
It was reranked as Micraster (Plesiaster) by Stephenson (1941).
It was assigned to Micraster by Stephenson (1941); to Brissidae by Fischer (1966); and to Spatangoida by Sepkoski (2002).
Species lacking formal opinion data
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.
Subg. †Micraster (Plesiaster) Pomel 1883
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Diagnosis
No diagnoses are available