Helicoplacoidea
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Superregnum: Eukaryota
Cladus: Unikonta
Cladus: Opisthokonta
Cladus: Holozoa
Regnum: Animalia
Subregnum: Eumetazoa
Cladus: Bilateria
Cladus: Nephrozoa
Superphylum: Deuterostomia
Phylum: Echinodermata
Subphylum: Echinozoa
Classis: †Helicoplacoidea
⧼Uncertainties⧽ edit
Classified in Echinozoa for convenience. More likely a basal echinoderm group.
Name edit
Helicoplacoidea Durham, 1963
References edit
Links edit
Vernacular names edit
English: Helicoplacoidea
中文: 海旋板纲
中文: 海旋板纲