Baarli, B. G. (1995). Orthacean and strophomenid brachiopods from the Lower Silurian of the central Oslo Region. <em>Fossils and Strata.</em> 39: 1-93.[details]
original descriptionBaarli, B. G. (1995). Orthacean and strophomenid brachiopods from the Lower Silurian of the central Oslo Region. <em>Fossils and Strata.</em> 39: 1-93.[details]