Die gezeigte Taxonomie ist der Versuch aus Einstufungen verschiedenster Wissenschaftler eine schlüssige Zuordnung zu treffen. Da sich die Taxonomie durch verfeinerte Untersuchungsmethoden und weitere Funde verändern kann, versteht sich unsere Zuordnung nur als Anhaltspunkt.
M. Streng, 2016 - A new family of Cambrian rhynchonelliformean brachiopods (Order Naukatida) with an aberrant coral-like morphology - Palaeontology (59), 269-293 (journal article, English)
C. B. Skovsted, 2005 - Early Cambrian brachiopods from north-east Greenland - Palaeontology (48), 325-345 (journal article, )
J. J. Sepkoski, Jr., 2002 - A compendium of fossil marine animal genera - Bulletins of American Paleontology (363), 1-560 (serial monograph, English)
L. E. Popov, 2001 - Brachiopods of the redefined family Tritoechiidae from the Ordovician of Kazakhstan and South Urals - Geobios (34), 131-155 (journal article, English)
S. J. Carlson, 2001 - Ghosts of the Past, Present, and Future in Brachiopod Systematics - Journal of Paleontology (75), 1109-1118 (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. A. Brock, 1999 - An Unusual Micromorphic Brachiopod from the Middle Cambrian of North-Eastern New South Wales, Australia - Records of the Australian Museum (51), 179-186 (journal article, English)
G. Geyer, 1994 - A new obolellid brachiopod from the Lower Cambrian of Morocco - Journal of Paleontology (68), 995-1002 (journal article, English)
A. J. Rowell, 1977 - Early Cambrian Brachiopods from the Southwestern Great Basin of California and Nevada - Journal of Paleontology (51), 68-85 (journal article, English)
G. A. Cooper, 1976 - Lower Cambrian brachiopods from the Rift Valley (Isreal and Jordan) - Journal of Paleontology (50), 269-289 (journal article, )
L. R. Cox, 1969 - Mollusca 6: Bivalvia - Treatise on Invertebrate Paleontology (1), N1-N489 (serial monograph, English)
P. Hupé, 1959 - Nouvelle contribution a l'etude du Cambrien marocain - Thèse Scientifique, Faculté des Sciences, Universite de Paris (), 1-447 (Ph.D. thesis, English)
G. A. Cooper, 1952 - Cambrian Stratigraphy and Paleontology near Caborca, Northwestern Sonora, Mexico - Smithsonian Miscellaneous Collections (119), 1-181 (journal article, English)
C. D. Walcott, 1912 - Cambrian Brachiopoda - United States Geological Survey Monograph (51), - (serial monograph, )
C. W. Walcott, 1908 - Cambrian Brachiopoda: descriptions of new genera and species - Smithsonian Miscellaneous Collections (53), 53-137 (journal article, English)
C. D. Walcott, 1890 - Descriptive notes of new genera and species from the Lower Cambrian or Olenellus zone of North America - Proceedings of the United States National Museum (12), 33-46 (journal article, English)
E. Billings, 1861 - On some new or little known species of Lower Silurian fossils from the Potsdam group (Primordial zone) - Palaeozoic Fossils (1), 1-18 (book/book chapter, English)
J. Hall, 1847 - Containing descriptions of the organic remains of the lower division of the New York system (equivalent of the Lower Silurian rocks of Europe) - Paleontology of New York (1), 1-338 (serial monograph, )