Rare and little known snails (Hydrocenoidea and Pupilloidea) from Eocene Baltic amber

@article{Stworzewicz2015RareAL,
  title={Rare and little known snails (Hydrocenoidea and Pupilloidea) from Eocene Baltic amber},
  author={E. Stworzewicz and B. Pokryszko},
  journal={Folia Malacologica},
  year={2015},
  volume={23}
}