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 - Late Permian (Wuchiapingian) brachiopod fauna from the lower Takakurayama Formation, Abukuma Mountains, northeastern Japan - Paleontological Research (19), 33-51 (journal article, English)
B. Waterhouse, 2007 - Brachiopoda from the Late Permian Senja Formation, Manang area, Nepal Himalaya - Palaeontographica Abteilung A (280), 1-69 (journal article, English)
A. Williams, 2006 - - Treatise on Invertebrate Paleontology Part H, Brachiopoda. Volume 5: Rhynchonelliformea (part) (5), 1689-2320 (compendium, English)
J. B. Waterhouse, 2004 - Permian and Triassic stratigraphy and fossils of the Himalaya in northern Nepal - Earthwise (6), 1-259 (serial monograph, English)
J. J. Sepkoski, Jr., 2002 - A compendium of fossil marine animal genera - Bulletins of American Paleontology (363), 1-560 (serial monograph, English)
N. V. Kalashnikov, 1998 - - Permian Spiriferids from the North of European Russia (), 1-139 (book/book chapter, Russian)
W. P. Liang, 1990 - Lengwu Formation of Permian and its Brachiopod Fauna in Zhejiang Province - Geological Memoirs (2), 1-522 (book/book chapter, Chinese)
J. B. Waterhouse, 1983 - Permian brachiopods from Pija Member, Senja Formation in Manang District of Nepal, with new brachiopod genera and species from other region - Bulletin of the Indian Geologists' Association (16), 111-151 (journal article, English)
J. B. Waterhouse, 1978 - Permian Brachiopoda and Mollusca from north-west Nepal - Palaeontographica Abteilung A (160), 1-175 (journal article, )
G. A. Cooper, 1976 - Permian Brachiopods from West Texas, IV - Smithsonian Contributions to Paleobiology (21), 1923-2607 (serial monograph, English)
J. B. Waterhouse, 1975 - New Permian and Triassic brachiopod taxa - Papers - Department of Geology, University of Queensland (7), 1-23 (journal article, English)
V. M. Zavodowsky, 1968 - Spiriferacea - Novye Vidy Drevnikh Rasteniy i Bespozvonochnykh SSSR (2), 149-160 (book/book chapter, Russian)
W. G. H. Maxwell, 1964 - The geology of the Yarrol Region. Part 1. Biostratigraphy - Papers - Department of Geology, University of Queensland (5), 1-60 (serial monograph, English)
C. O. Dunbar, 1955 - Permian brachiopod faunas of central east Greenland - Meddelelser om Grønland (110), 1-169 (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)
T. N. Tschernyschew, 1902 - Verkhnekamennougol'nyya Brakhiopody Urala i Timana [Upper Carboniferous Brachiopods of the Urals and Timan] - Trudy Geologicheskago Komiteta (16), 1-749 (serial monograph, Russian)
C. Diener, 1897 - The Permian fossils of the Productus Shales of Kumaon and Gurhwal - Palaeontologia Indica, Series 15 (1), 1-54 (serial monograph, English)
W. Waagen, 1883 - Productus Limestone Fossils, Part IV, fas. 2 - Salt Range Fossils, Palaeontologia Indica, Series 13 (1), 391-546 (serial monograph, English)
H. B. Geinitz, 1861 - Die animalischen ueberreste der Dyas - Dyas oder die Zechstein Formation und das Rothliegende (), 1-130 (book/book chapter, German)
W. King, 1850 - Monograph of the Permian fossils of England - Palaeontographical Society (), 1-253 (book/book chapter, English)
J. d. C. Sowerby, 1827 - No. XCVI of the mineral conchology of Great Britain; or colored figures and descriptions of those remains of testaceous animals or shells, which have been preserved at various times and depths in the Earth - The Mineral Conchology of Great Britain (6), 109-120 (book/book chapter, English)
E. F. von Schlotheim, 1813 - Beiträge zur Naturgeschichte der Versteinerungen in geognostischer Hinsicht - Taschenbuch für die gesammte Mineralogie, mit Hinsicht auf die neuesten Entdeckungen, herausgegeben von Dr. Carl Caesar Leonhard (7), 3-134 (journal article, German)