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Petaloblastus

Pentremitida - Hyperoblastidae

Taxonomy
Petaloblastus was named by Fay (1961) [Sepkoski's age data: D Fame Sepkoski's reference number: 523]. It is not extant.

It was assigned to Hyperoblastidae by Lane et al. (2001); and to Spiraculata by Sepkoski (2002).

Synonymy list
YearName and author
1961Petaloblastus Fay
2001Petaloblastus Lane et al.
2002Petaloblastus Sepkoski, Jr.

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RankNameAuthor
kingdomAnimalia()
Triploblastica
Nephrozoa
Deuterostomia
Ambulacraria
phylumEchinodermata
RankNameAuthor
subphylumBlastozoaSprinkle 1973
subclassBlastoideaSay 1825
orderPentremitidaMatsumoto 1929
familyHyperoblastidaeFay 1964
genusPetaloblastusFay 1961

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