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Siphonalia nipponica Oyama and Mizuno 1958 (true whelk)

Gastropoda - Neogastropoda - Buccinidae

PaleoDB taxon number: 172603

Full reference: K. Oyama and A. Mizuno. 1958. n the New Forms of Paleogene Molluscs from Japan. Bulletin of the Geological Survey of Japan 9:589-606

Belongs to Siphonalia according to K. Oyama and A. Mizuno 1958

Sister taxa: Siphonalia acuta, Siphonalia andersoni, Siphonalia ariejansseni, Siphonalia belenensis, Siphonalia calvertana, Siphonalia cassidariaeformis, Siphonalia cotteri, Siphonalia devexus, Siphonalia dubius, Siphonalia gilberti, Siphonalia ishikariana, Siphonalia johnsoni, Siphonalia longirostris, Siphonalia nuntia, Siphonalia paradoxica, Siphonalia phosoidea, Siphonalia roblini, Siphonalia shojii, Siphonalia signa, Siphonalia spatiosa, Siphonalia sutterensis, Siphonalia tessaria, Siphonalia trilica

Type specimen: GSJ 5035, a shell

Ecology: epifaunal carnivore

Average measurements (in mm): shell 17.9 x 10.5