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Micraster (Plesiaster)

Echinoidea - Spatangoida - Micrasteridae

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).

Synonymy list
YearName and author
1883Plesiaster Pomel p. 42
1941Micraster (Plesiaster) Stephenson
1966Plesiaster Fischer p. U603
2002Plesiaster Sepkoski, Jr.

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RankNameAuthor
kingdomAnimalia()
Triploblastica
Nephrozoa
Deuterostomia
Ambulacraria
phylumEchinodermata
subphylumEchinozoa
classEchinoidea()
subclassEuechinoideaBronn 1860
RankNameAuthor
superorderAcroechinoidea()
Carinacea
Irregularia()
Atelostomata
orderSpatangoida
suborderMicrasterina
familyMicrasteridae()
genusMicrasterAgassiz 1836
subgenusPlesiaster()

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.

Diagnosis
No diagnoses are available