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Aristocystites

Diploporita - Aristocystitidae

Taxonomy
Aristocystites was named by Barrande (1887) [Sepkoski's age data: O Trem O Ashg-u].

It was assigned to Aristocystitinae by Parsley (1990); and to Diploporita by Sepkoski (2002).

Synonymy list
YearName and author
1887Aristocystites Barrande
1990Aristocystites Parsley p. 288
2002Aristocystites Sepkoski, Jr.

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RankNameAuthor
kingdomAnimalia()
Triploblastica
Nephrozoa
Deuterostomia
Ambulacraria
phylumEchinodermata
RankNameAuthor
subphylumBlastozoaSprinkle 1973
classDiploporitaMüller 1854
superfamilyAristocystitoidaNeumayr 1889
familyAristocystitidaeBassler 1938
subfamilyAristocystitinaeNeumayr 1894
genusAristocystitesBarrande 1887

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
ReferenceDiagnosis
R. L. Parsley 1990Aristocystitid with pyriform to globose theca, anterior face flattened; oval peristome composed of eight peristomals, one brachiole seat at each end of peristome; gonopore raised, variously placed. Periproct large, with heavy plated pyramid and robust articulation surface for pyramid plates. Large, variable attachment disc at aboral end of theca on anterior surface. Thecal plates thick; densely placed simple diplopore structures uniformly developed on all sides of theca.