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, 2016 - Systematic descriptions, in A Kungurian (early Permian) brachiopod fauna from Ogama, Kuzu area, central Japan, and its palaeobiogeographical affinity with the Wolfcampian–Leonardian (early Permian) brachiopod fauna of West Texas, USA - Paleontological Research (20), 367-384 (journal article, English)
M. E. Clapham, 2015 - Personal Opinions - (), - (unpublished, English)
J. I. Tazawa, 2015 - Early Permian (Kungurian) brachiopods from Nakadaira, South Kitakami Belt, northeastern Japan - Paleontological Research (19), 156-177 (journal article, English)
K. A. Badyrka, 2013 - Paleoecology of brachiopod communities during the late Paleozoic ice age in Bolivia (Copacabana Formation, Pennsylvanian-Early Permian) - Palaeogeography, Palaeoclimatology, Palaeoecology (387), 56-65 (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)
T. A. Grunt, 2002 - Late Permian brachiopods from the Crimean Mountains - Paleontological Journal (36), 148-156 (journal article, English)
S. Z. Shen, 2000 - Early Permian Brachiopods of Gondwana affinity from the Dingjiazhai Formation of the Baoshan Block, western Yunnan, China - Rivista Italiana di Paleontologia e Stratigrafia (106), 263-282 (journal article, English)
A. Williams, 2000 - Part H Brachiopoda (revised): Volumes 2 & 3, Linguliformea, Craniiformea, Rhynchonelliformea (part). - Treatise on Invertebrate Paleontology (), 1-919 (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)
W. P. Liang, 1990 - Lengwu Formation of Permian and its Brachiopod Fauna in Zhejiang Province - Geological Memoirs (2), 1-522 (book/book chapter, Chinese)
M. L. Chang, 1987 - Fossil brachiopoda from Chihsia Formation, Anqing, Anhui - Acta Palaeontologica Sinica (26), 753-766 (journal article, Chinese)
L. Li, 1986 - The brachiopods and the boundary of Late Carboniferous-Early Permian in Longlin region, Guangxi - Bulletin of the Yichang Institute of Geology and Mineral Resources (11), 199-258 (journal article, Chinese)
D. L. Yang, 1984 - Brachiopoda - Biostratigraphy of the Yangtze Gorge Area (3), 203-239 (book/book chapter, Chinese)
T. Sun, 1983 - Early Permian new genera and species of brachiopod fauna in Rutog Duoma area, Xizang (Tibet), China - Earth Science - Journal of Wuhan College of Geology (19), 119-128 (journal article, Chinese)
S. Hu, 1982 - Brachiopod taxonomic names - Palaeontological Atlas of East China (2), 186-256 (book/book chapter, Chinese)
Z. T. Liao, 1982 - Brachiopod taxonomic names - Palaeontological Atlas of East China (2), 186-256 (book/book chapter, Chinese)
Z. T. Liao, 1979 - Uppermost Carboniferous brachiopods from western Guizhou - Acta Palaeontologica Sinica (18), 527-546 (journal article, English)
Z. X. Tong, 1978 - Carboniferous and Permian Brachiopoda - Palaeontological Atlas of Southwest China - Sichuan Volume (2), 210-267 (book/book chapter, Chinese)
S. S. Lazarev, 1977 - Orthidy verknego paleozoya Sibiri i Arktiki [Upper Paleozoic orthids of Siberia and the Arctic], in Brakhiopody verkhnego paleozoya Sibiri i Arktiki [Upper Paleozoic brachiopods of Siberia and the Arctic] - Akademiya Nauk SSSR, Trudy Paleontologicheskogo Instituta (162), 19-37 (serial monograph, Russian)
D. Yang, 1977 - Brachiopoda names - Palaeontological Atlas of South-Central China (2), 306-470 (book/book chapter, Chinese)
G. A. Cooper, 1976 - Permian Brachiopods of west Texas, V - Smithsonian Contributions to Paleobiology (24), 2609-3159 (serial monograph, English)
Y. G. Jin, 1974 - Permian brachiopods - Handbook of the Stratigraphy and Paleontology of Southwest China (), 308-313 (book/book chapter, Chinese)
R. Watkins, 1974 - Carboniferous Brachiopods from Northern California - Journal of Paleontology (48), 304-325 (journal article, English)
A. N. Sokolskaja, 1965 - Orthids, Strophomenids, Chonetids, and Rhynchonellids, in The Development and Change of Marine Organisms at the Palaeozoic-Mesozoic Boundary - Akademiya Nauk SSSR, Trudy Paleontologicheskogo Instituta (108), 198-236 (book/book chapter, Russian)
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)
F. R. C. Reed, 1944 - Brachiopoda and Mollusca from the Productus limestones of the Salt Range - Palaeontogica Indica, Memoirs of the Geological Survey of India, New Series (23), 1-596 (serial monograph, English)
A. W. Grabau, 1936 - Early Permian fossils of China, part 2, Fauna of the Maping Limestone of Kwangsi and Kweichos - Paleontologia Sinica, ser. B. (8), - (journal article, English)
T. K. Huang, 1933 - Late Permian Brachiopoda of southwestern China, Part 2 - Palaeontologia Sinica, Series B (9), 1-172 (serial monograph, English)
I. Hayasaka, 1932 - An Upper Carboniferous brachiopod fauna of Japan - Journal of the Geological Society of Tokyo (39), 547-551 (journal article, Japanese)
A. W. Grabau, 1931 - The Permian of Mongolia - Natural History of Asia (4), 1-665 (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)
G. H. Girty, 1929 - New Carboniferous invertebrates - II - Journal of the Washington Academy of Sciences (19), 406-415 (journal article, English)
W. Waagen, 1884 - Productus Limestone Fossils, Part IV, fas. 3 - Salt Range Fossils, Palaeontologia Indica, Series 13 (1), 547-610 (serial monograph, English)
F. Toula, 1869 - Über einige Fossilien des Kohlenkalkes von Bolivia - Kaiserlichen Akademie der Wissenschaften, Mathematisch-Naturwissenschaftlichen Classe (59), 433-445 (journal article, German)