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Menopygus

Echinoidea - Desorellidae

Taxonomy
Menopygus was named by Pomel (1883) [Sepkoski's age data: J Bajo J Oxfo-l].

It was assigned to Euechinoidea by Wagner and Durham (1966); to Echinoidea by Sepkoski (2002); and to Desorellidae by Barras (2007).

Synonymy list
YearName and author
1883Menopygus Pomel p. 52
1966Menopygus Wagner and Durham p. U631
2002Menopygus Sepkoski, Jr.
2007Menopygus Barras p. 158

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RankNameAuthor
kingdomAnimalia()
Triploblastica
Nephrozoa
Deuterostomia
Ambulacraria
phylumEchinodermata
subphylumEchinozoa
classEchinoidea()
RankNameAuthor
subclassEuechinoideaBronn 1860
infraclassAcroechinoidea()
Carinacea
Irregularia()
Microstomata
familyDesorellidae
genusMenopygus

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
C. G. Barras 2007Desorellids in which the periproct lies in direct contact with the apical disc. There is a wide and deep periproctal groove stretching to the posterior, from the test apex to the ambitus.