Gerontia (gastropod)
Gerontia is a genus of extinct sea snails, marine gastropod mollusks in the family Neritopsidae. These gastropods are known from fossil records dating back to the Triassic period.
The shells of Gerontia species are typically small and globular or oval in shape. Like other neritopsids, they possess a thick shell. Diagnostic features often rely on details of the shell ornamentation and the structure of the aperture.
Fossil discoveries of Gerontia have provided valuable insights into the evolution and diversification of gastropods during the Mesozoic Era. Their presence in specific geological formations helps paleontologists understand ancient marine environments and biogeographic patterns.