Gibbula buchi
Gibbula buchi is a species of sea snail, a marine gastropod mollusk in the family Trochidae, the top snails.
It is only known as a fossil from the Late Middle Miocene of Austria in the age range between 13.65 Ma and 11.608 Ma.
It was an epifaunal grazer in the offshore zone.
A study of M. Harzhauser and T. Kowalke has put this species in the genus Gibbula.