Basic info Taxonomic history Classification Relationships
Morphology Ecology and taphonomy   Age range and collections

Xysteria

Echinoidea - Palaechinoidea

Taxonomy
Xysteria was named by Pomel (1883) [Sepkoski's age data: C l].

It was assigned to Palechinida by Kier (1966); and to Echinocystitoida by Sepkoski (2002).

Synonymy list
YearName and author
1883Xysteria Pomel p. 114
1966Xysteria Kier p. U312
2002Xysteria Sepkoski, Jr.

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RankNameAuthor
kingdomAnimalia()
Triploblastica
Nephrozoa
Deuterostomia
Ambulacraria
phylumEchinodermata
RankNameAuthor
subphylumEchinozoa
classEchinoidea()
subclassPerischoechinoidea()
superorderEognathostomataSmith 1984
orderPalaechinoidea()
genusXysteria

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