Stromboidea
Original Description of Kangilioptera inouei by Amano & Jenkins, 2014:
- "Medium-sized shell, up to 26.1 mm high, turriform; protoconch missing; teleoconch comprising eight whorls. Suture weakly impressed. Last whorl occupying 46% of shell height with many fine spiral striae and three keels; uppermost keel at shoulder, bearing small nodes, extending to posterior labral digitation; middle keel weaker than uppermost one, situated at transition to base; lowest keel relatively weak on base. Uppermost keel at about mid-whorl on spire whorls, forming periphery, but absent from earliest spire whorl; middle and lowest keels absent from spire whorls. Penultimate whorl with fine spiral striae and 15 to 19 sigmoidal axial ribs on blunt keel. Lower third of whorl sculptured by fine spiral striae and 19 sigmoidal axial ribs with narrow interspaces. Posterior labral digitation rather short, prominent, without lobe at anterior end of wing in most specimens. Some specimens, such as paratype (JUE no. 15916), with wide lobe at anterior end of wing. Inner lip covered with rather thin callus reaching to top of penultimate whorl. Rostrum short and straight.
Locus typicus: Bank of Urahoro River, 1.2 km north of the mouth of the Ponkatsuhirazawa River, eastern Hokkaido, Japan
Stratum typicum: Katsuhira Formation, Paleocene
Kangilioptera inouei Amano & Jenkins, 2014; holotype; Bank of Urahoro River, 1.2 km north of the mouth of the Ponkatsuhirazawa River, eastern Hokkaido, Japan; Katsuhira Formation, Paleocene
Kangilioptera inouei Amano & Jenkins, 2014; paratype JUE no. 15916; Bank of Urahoro River, 1.2 km north of the mouth of the Ponkatsuhirazawa River, eastern Hokkaido, Japan; Katsuhira Formation, Paleocene
References
- K. Amano, R.G. Jenkins, 2014. A new Paleocene species of Aporrhaidae (Gastropoda) from eastern Hokkaido, Japan; Paleontological Research, 18(1), 33-39
