Abstract
Phylogeny and stratigraphic distribution, affinities of Draboviinae, Isorthinae, and Schizophoriinae, systematic descriptions, new species, geographic distribution
V. G. Walmsley, A. J. Boucot, C. W. Harper; Silurian and lower Devonian salopinid brachiopods. Journal of Paleontology 1969;; 43 (2): 492–516. doi:
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Phylogeny and stratigraphic distribution, affinities of Draboviinae, Isorthinae, and Schizophoriinae, systematic descriptions, new species, geographic distribution