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Nipponitys

Gastropoda - Neogastropoda - Melongenidae

Taxonomy
Nipponitys was named by Kase (1990) [Sepkoski's age data: K Camp-u K Maes-l].

It was assigned to Melongenidae by Kase (1990); and to Neogastropoda by Sepkoski (2002).

Synonymy list
YearName and author
1990Nipponitys Kase pp. 569 - 571
2002Nipponitys Sepkoski, Jr.

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RankNameAuthor
kingdomAnimalia()
Bilateria
EubilateriaAx 1987
Protostomia
Spiralia
Schizocoela
phylumMollusca
RankNameAuthor
classGastropodaCuvier 1797
subclassProsobranchiaMilne-Edwards 1848
superorderCaenogastropodaCox 1959
orderNeogastropodaThiele 1929
superfamilyBuccinoidea(Rafinesque 1815)
familyMelongenidaeGill 1867
genusNipponitys

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
T. Kase 1990Large, reaching more than 100 mm in height, slender fusiform shells; spire highly elevated, with height about one-half total shell height; whorls biangulated, with broad, more or less concave outer surface, and broad, inclined ramp; aperture lenticular, posteriorly angulated; siphonal canal moderately long, proportionately narrow anteriorly; inner lip covered by thin inductura, without prominent fold; outer lip sharp and smooth within; sculpture of slightly opisthocline, not transverse axial ribs on upper whorl angulation and spiral cords; base with strong spiral cords, weakening in strength anteriorly; growth lines broadly sinuous at upper angulation.