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.
J. I. Tazawa, 2015 - Early Permian (Kungurian) brachiopods from Nakadaira, South Kitakami Belt, northeastern Japan - Paleontological Research (19), 156-177 (journal article, English)
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)
Z. Q. Chen, 2006 - Artinskian-Kungurian (Early Permian) brachiopod faunas from the Tarim Basin, Northwest China, Part 1: Biostratigraphy and systematics of Productida - Palaeontographica Abteilung A (274), 113-177 (journal article, English)
Z. Q. Chen, 2004 - Lower Permian reef-dwelling brachiopod faunas from the Tarim Basin, Northwest China: biostratigraphy, palaeoecology and biogeography - Palaeontographica Abteilung A (272), 1-96 (journal article, English)
J. J. Sepkoski, Jr., 2002 - A compendium of fossil marine animal genera - Bulletins of American Paleontology (363), 1-560 (serial monograph, English)
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)
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)
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)
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)
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)
A. D. d'Orbigny, 1842 - - Voyage dans l'Amérique Méridionale: (le Brésil, la République Orientale de l'Uruguay, la République Argentine, la Patagonie, la République du Chili, la République de Bolivia, la République du Pérou), Exécuté Pendant les Années 1826, 1827, 1828, 1829, 1830 (), 1-188 (book, French)