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Morphology Ecology and taphonomy   Age range and collections

Monostychia

Echinoidea - Clypeasteroida - Clypeasteridae

Taxonomy
Monostychia was named by Laube (1869) [Sepkoski's age data: T Mi].

It was assigned to Arachnoididae by Durham (1966); and to Clypeasteroida by Sepkoski (2002).

Synonymy list
YearName and author
1869Monostychia Laube p. 188
1966Monostychia Durham p. U468
2002Monostychia Sepkoski, Jr.

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RankNameAuthor
kingdomAnimalia()
Triploblastica
Nephrozoa
Deuterostomia
Ambulacraria
phylumEchinodermata
subphylumEchinozoa
classEchinoidea()
subclassEuechinoideaBronn 1860
infraclassAcroechinoidea()
RankNameAuthor
Carinacea
Irregularia()
Microstomata
Neognathostomata
orderClypeasteroida
suborderClypeasterina()
familyClypeasteridae()
subfamilyArachnoidinae
genusMonostychia

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