Sinkkikloridia

Sinkkikloridia is a genus of small, freshwater snails with a gill and an operculum, an external shell. It is an extinct genus of freshwater snails, marine gastropod mollusks in the family Thiaridae. The genus Sinkkikloridia is known from the Miocene epoch, which occurred between 23.03 and 5.333 million years ago. The type species of the genus is Sinkkikloridia miocaenica, which was described by A. A. Boettger in 1886. The genus is characterized by its small size, with shells typically measuring less than 10 millimeters in length. The shell is typically low-spired, with a smooth surface and a rounded apex. The operculum is typically smooth and rounded, with a small nucleus. The genus is known from fossils found in Europe and Asia. The genus Sinkkikloridia is of interest to paleontologists and mollusk taxonomists due to its unique characteristics and the time period in which it lived.