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Stigmatopygus

Echinoidea - Cassiduloida - Cassidulidae

Taxonomy
Stigmatopygus is a genus. It is not extant.

It was assigned to Faujasiidae by Kier (1966); to Cassidulidae by Smith (1995); and to Cassiduloida by Sepkoski (2002).

Synonymy list
YearName and author
1966Stigmatopygus Kier p. U513
1995Stigmatopygus Smith p. 212
2002Stigmatopygus Sepkoski, Jr.

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RankNameAuthor
kingdomAnimalia()
Triploblastica
Nephrozoa
Deuterostomia
Ambulacraria
phylumEchinodermata
subphylumEchinozoa
classEchinoidea()
subclassEuechinoideaBronn 1860
RankNameAuthor
superorderAcroechinoidea()
Carinacea
Irregularia()
Microstomata
Neognathostomata
orderCassiduloida
superfamilyCassidulina
familyCassidulidae
genusStigmatopygus

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