This mentioned taxonomy is an attempt to make an conclusive assignment from the different classifications of various scientists. Because the taxonomy may change due to the latest investigative methods and other findings, our map is a guide only.
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S. S. Lazarev, 2011 - Brachiopods of the subfamily Chaoiellinae subfam. nov.: phylogeny and position in the Productidin systematics - Paleontological Journal (45), 23-34 (journal article, English)
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G. R. Shi, 1996 - Lower Permian brachiopods and molluscs from the upper Jungle Creek Formation, northern Yukon Territory, Canada - Geological Survey of Canada Bulletin (424), 1-241 (serial monograph, English)
M. L. Chang, 1987 - Fossil brachiopoda from Chihsia Formation, Anqing, Anhui - Acta Palaeontologica Sinica (26), 753-766 (journal article, Chinese)
P.R. Hoover, 1981 - Paleontology, Taphonomy, and Paleoecology of the Palmarito Formation (Permian of Venezuela) - Bulletins of American Paleontology (80), 1-138 (serial monograph, )
T. G. Sarycheva, 1977 - Pozdnepaleozoyskie produktidy Sibiri i Arktiki [Upper Paleozoic productids of Siberia and the Arctic] - Akademiya Nauk SSSR, Trudy Paleontologicheskogo Instituta (161), 1-220 (journal article, Russian)
G. A. Cooper, 1975 - Permian Brachiopods of West Texas, III - Smithsonian Contributions to Paleobiology (19), 795-1921 (serial monograph, English)
J. B. Waterhouse, 1971 - Appendix 2: systematic description of new brachiopod species and genera, in Carboniferous and Permian Stratigraphy and Paleontology, Northern Yukon Territory, Canada - Bulletin of Canadian Petroleum Geology (19), 205-234 (journal article, English)
F.G. Stehli, 1970 - Permian brachiopods from Huehuetenango, Guatemala - Journal of Paleontology (44), 23-36 (journal article, )
V. I. Ustritsky, 1963 - Taxonomic names, in Biostratigrafiya I Brakhiopody Verknego Paleozoya Taimyra - Trudy Nauchno-Issledoratel'skogo Instituta Geologii Arktiki (134), 1-139 (journal article, Russian)
K. Nakamura, 1960 - Dictyoclostus derived from the Middle Permian Kanokura Series and the Lower Permian Sakamotozawa Series of the Kitakami Mountains, Japan - Journal of the Faculty of Science, Hokkaido University, Series 4, Geology and Mineralogy (10), 495-511 (journal article, English)
F.G. Stehli, 1954 - Lower Leonardian Brachiopoda of the Sierra Diablo - Bulletin of the American Museum of Natural History (105), 257-358 (serial monograph, English)
E. D. McKee, 1938 - The environment and history of the Toroweap and Kaibab Formations of northern Arizona and southern Utah - Carnegie Institution of Washington Publication (492), 1-268 (serial monograph, English)
R. E. King, 1931 - The Geology of the Glass Mountains, Texas, Part II, Faunal summary and correlation of the Permian formations with description of Brachiopoda - The University of Texas Bulletin (3042), 1-245 (serial monograph, English)
H. Keidel, 1906 - Geologische Untersuchungen im südlichen Tian-Schan nebst Beschreibung einer obercarbonischen Brachiopodenfauna aus dem Kukurtkuk-Tal - Neues Jahrbuch für Mineralogie, Geologie und Paläontologie (22), 266-384 (journal article, German)
E. Schellwien, 1892 - Die Fauna des karnischen Fusulinenkalks - Palaeontographica (39), 1-56 (journal article, German)
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