Basic info | Taxonomic history | Classification | Included Taxa |
Morphology | Ecology and taphonomy | External Literature Search | Age range and collections |
Nipponitys
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).
It was assigned to Melongenidae by Kase (1990); and to Neogastropoda by Sepkoski (2002).
Species lacking formal opinion data
Is something missing? Join the Paleobiology Database and enter the data
|
|
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.
G. †Nipponitys Kase 1990
show all | hide all
Diagnosis
Reference | Diagnosis | |
---|---|---|
T. Kase 1990 | Large, 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. |