A stage in the Middle Devonian epoch preceded by the Eifelian, followed by the Frasnian, and dated at 391.8–385.3 Ma ago (Int. Commission on Stratigraphy, 2004). The corresponding European stage is zoned on goniatites and spiriferid brachiopods. It is roughly contemporaneous with the lower Condobolinian (Australia) and Erian (N. America).