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Kotakaia

Gastropoda - Personidae

Taxonomy
Kotakaia was named by Beu (1988) [Sepkoski's age data: T Than Sepkoski's reference number: 909].

It was assigned to Personidae by Beu (1988); and to Opisthobranchia by Sepkoski (2002).

Synonymy list
YearName and author
1988Kotakaia Beu pp. 90 - 91
2002Kotakaia Sepkoski, Jr.

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RankNameAuthor
kingdomAnimalia()
Bilateria
EubilateriaAx 1987
Protostomia
Spiralia
Schizocoela
phylumMollusca
RankNameAuthor
classGastropodaCuvier 1797
superorderHypsogastropoda(Ponder and Lindberg 1997)
infraorderLittorinimorphaGolikov and Starobogtov 1975
superfamilyTonnoidea(Suter 1913)
familyPersonidaeGray 1854
genusKotakaia

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
A. G. Beu 1988Shell small (to 20 mm high), with regularly coiled whorls; sculpture of simple low spiral cords (no axial sculpture visible); low, wide varices every 0.66 whorls; a short, straight, widely open anterior canal deflected strongly to the left; and a heavy apertural armature of high, narrowly rounded ridges, four inside the outer lip, one on the parietal area, and two (and, on some specimens, a very weak third) on a large, protruding callus-pad at the top of the anterior siphonal canal.