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Tetracionocrinus

Crinoidea - Aethocrinida - Perittocrinidae

Taxonomy
Tetracionocrinus was named by Ubaghs (1971) [Sepkoski's age data: O Aren-u]. It is not extant.

It was assigned to Perittocrinidae by Ausich (1998) and Ausich (1998); and to Disparida by Sepkoski (2002).

Synonymy list
YearName and author
1971Tetracionocrinus Ubaghs
1998Tetracionocrinus Ausich p. 19
2002Tetracionocrinus Sepkoski, Jr.

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RankNameAuthor
kingdomAnimalia()
Triploblastica
Nephrozoa
Deuterostomia
Ambulacraria
phylumEchinodermata
RankNameAuthor
classCrinoideaMiller 1821
subclassAethocrineaAusich 1998
orderAethocrinidaAusich 1998
familyPerittocrinidaeAbel 1920
genusTetracionocrinusUbaghs 1971

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