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Pyrgocystis

Edrioasteroidea - Pyrgocystidae

Taxonomy
Pyrgocystis was named by Bather (1915). It is not extant. Its type is Pyrgocystis sardesoni. It is the type genus of Pyrgocystidae.

It was assigned to Hemicystitidae by Regnéll (1945) and Regnéll (1966); to Isorophida by Sepkoski (2002); and to Pyrgocystidae by Sumrall and Zamora (2011).

Species lacking formal opinion data

View classification of included taxa

Synonymy list
YearName and author
1915Pyrgocystis Bather
1945Pyrgocystis Regnéll
1966Pyrgocystis Regnéll
2002Pyrgocystis Sepkoski, Jr.
2011Pyrgocystis Sumrall and Zamora p. 435

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RankNameAuthor
kingdomAnimalia()
Triploblastica
Nephrozoa
Deuterostomia
Ambulacraria
RankNameAuthor
phylumEchinodermata
classEdrioasteroideaBillings 1858
familyPyrgocystidaeKesling 1967
genusPyrgocystisBather 1915

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