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Polycosmites

Cystoidea - Rhombifera - Caryocrinitidae

Taxonomy
Polycosmites is a genus. It is not extant. It was considered unknown by Bernard (1895).

It was assigned to Caryocrinitidae by Bernard (1895); and to Rhombifera by Sepkoski (2002).

Synonymy list
YearName and author
1895Polycosmites Bernard
2002Polycosmites Sepkoski, Jr.

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RankNameAuthor
kingdomAnimalia()
Triploblastica
Nephrozoa
Deuterostomia
Ambulacraria
phylumEchinodermata
subphylumPelmatozoaLeuckart 1848
RankNameAuthor
classCystoideavon Buch 1846
subclassHydrophorideaZittel 1903
orderRhombiferaZittel 1879
superfamilyHemicosmitoida(Jaekel 1918)
familyCaryocrinitidaeBassler 1938
genusPolycosmites

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
ReferenceDiagnosis
F. Bernard 1895A genus of Caryocrinitidae with multidisjunct cryptorhombs with a complex arrangement of perpendicular canals forming a rhomb-in-rhomb structure. Primary thecal plates arranged as in the Caryocrinitidae. Oral area unknown.