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Risselloidea

Gastropoda - Trochidae

Taxonomy
Risselloidea was named by Cossmann (1909) [Sepkoski's age data: Tr Anis K Nc Sepkoski's reference number: 1130].

It was assigned to Archaeogastropoda by Sepkoski (2002); to Trochidae by Das (2008); and to Eucyclinae by Szabo (2008).

Synonymy list
YearName and author
1909Risselloidea Cossmann
2002Risselloidea Sepkoski, Jr.
2008Risselloidea Das p. 13
2008Risselloidea Szabo p. 82

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RankNameAuthor
kingdomAnimalia()
Bilateria
EubilateriaAx 1987
Protostomia
Spiralia
Schizocoela
phylumMollusca
RankNameAuthor
classGastropodaCuvier 1797
subclassOrthogastropoda
superorderVetigastropodaSalvini-Plawen 1980
superfamilyTrochoidea(Rafinesque 1815)
familyTrochidaeRafinesque 1815
subfamilyEucyclinaeKoken 1897
genusRisselloideaCossmann 1909

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