Two new gastropod genera from the Lower Silurian of the Oslo Region, Norway

Collections from stages 6 and 7 in the Llandoverian of the Oslo Region contain more than 30 gastropod species. Two new genera are described, a euomphalacean, Kiaeromphalus, and a loxonematacean, Kjerulfonema. The former is based on a new species and the latter on the only Silurian gastropod species that has previously been named from Norway.