Problematic microfossils from the Silurian of Ireland and Scotland

Problematic microfossils are described from the Silurian of the Dingle Peninsula, Country Kerry, Ireland and from a clast in the Old Red Sandstone Greywacke Conglomerate of the Midland Valley of Scotland. They are assigned to Sandvikina under the new specific name conica. The Irish material includes also single specimens of Sandvikina sp. and Regnellia camera. All these microfossils, which appear to be closely related, are here assigned to the new family Regnellidae, which on present evidence, is characteristic of the Silurian.