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Tetractocrinus

Crinoidea - Stellarocrinidae

Taxonomy
Tetractocrinus is a genus. It is not extant.

It was assigned to Crinoidea by Sepkoski (2002).

Synonymy list
YearName and author
2002Tetractocrinus Sepkoski, Jr.

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RankNameAuthor
kingdomAnimalia()
Triploblastica
Nephrozoa
Deuterostomia
Ambulacraria
phylumEchinodermata
classCrinoideaMiller 1821
RankNameAuthor
superorderCyathoformes
familyStellarocrinidae
superfamilyErisocrinaceaWachsmuth and Springer 1886
superfamilyApographiocrinoideaMoore and Laudon 1943
familyPachylocrinidae
superfamilyCromyocrinoideaBather 1890
genusTetractocrinus

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