Tosatrochus attenuatus Jonas 1844 (top snail)

Gastropoda - Trochoidea - Trochidae

Alternative combination: Trochus attenuatus

Belongs to Tosatrochus according to F. S. MacNeil 1960

Sister taxa: none

Ecology: epifaunal grazer

Distribution: found only at USGS F-449, Ryukyu Island - Foster (1965) (Quaternary of Japan)

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