Superregnum: Eukaryota
Regnum: Animalia
Subregnum: Eumetazoa
Cladus: Bilateria
Cladus: Nephrozoa
Cladus: Protostomia
Cladus: Spiralia
Cladus: Lophotrochozoa
Phylum: Mollusca
Classis: Monoplacophora
Ordo: †Cyrtonellida
Familiae (3): Carcassonnellidae - Cyrtolitidae - Multifariidae
Cyrtonellida is a group of "monoplacophora", representing either a sister taxon to, or a polyphyletic assemblage including, the Trybliida.
Subtaxa
Carcassonnellidae
Cyrtolitidae
Cyrtonelloidea
Pollicinidae
Genera
Aremellia
Hamusella
Tetamocornu
Yangtzeconus
Yochelsonia
References
Eric W. Holman (Autumn 1989). "Some Evolutionary Correlates of Higher Taxa". Paleobiology. 15 (4): 357–363. doi:10.1017/s0094837300009556. JSTOR 2400759.
R. J. Horný. 1963. On the systematic position of cyrtonelloids (Mollusca). Časopis Národni Muzea - Oddíl přírodovĕdny 132(2):90-94
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