• Combination in Cryptocerus: Fabricius, 1804: 419.
• Combination in Cephalotes: Santschi, 1919f: 44
• Status as species: Fabricius, 1804: 419; Santschi, 1919f: 44.
• Subspecies of Cephalotes atratus: Santschi, 1920f: 149; Forel, 1922b: 97; Borgmeier, 1927c: 115; Santschi, 1939f: 163.
• Junior synonym of Cephalotes atratus: Retzius, 1783: 76; Latreille, 1802a: 272; Fabricius, 1804: 419; Latreille, 1817a: 526; Klug, 1824: 200; Smith, 1853: 215; Smith, 1858a: 188; Mayr, 1863a: 405; Roger, 1863b: 38; Mayr, 1865: 114; Dalla Torre, 1893: 141; Forel, 1895b: 133; Forel, 1899b: 48; Wheeler, 1908a: 144; Emery, 1924f: 303; Borgmeier, 1927c: 114; Kempf, 1951: 115; Kempf, 1958a: 10; Kempf, 1972b: 75; Bolton, 1995b: 141; De Andrade & Baroni Urbani, 1999: 111; Oliveira et al., 2021: 19 (in list).

Obsolete combinations

• Cephalotes quadridens
• Formica quadridens

Citations

• Bolton, B. 1995b. A new general catalogue of the ants of the world. Cambridge, Mass.: Harvard University Press, 504 pp.
• Borgmeier, T. 1927c. Catalogo systematico e synonymico das formigas do Brasil. 2 parte. Subf. Pseudomyrminae, Myrmicinae, Formicidae. Archivos do Museu Nacional (Rio de Janeiro) 29:69-164. PDF
• Dalla Torre, K. W. 1893. Catalogus Hymenopterorum hucusque descriptorum systematicus et synonymicus. Vol. 7. Formicidae (Heterogyna). Leipzig: W. Engelmann, 289 pp. PDF
• De Andrade, M. L.; Baroni Urbani, C. 1999. Diversity and adaptation in the ant genus Cephalotes, past and present. Stuttgarter Beiträge zur Naturkunde. Serie B (Geologie und Paläontologie) 271:1-889. PDF
• De Geer, C. 1773. Mémoires pour servir à l'histoire des insectes. Tome troisième. Stockholm: Pierre Hesselberg, 696 pp. PDF
• Emery, C. 1924f ("1922"). Hymenoptera. Fam. Formicidae. Subfam. Myrmicinae. [concl.]. Genera Insectorum 174C:207-397. PDF
• Fabricius, J. C. 1804. Systema Piezatorum secundum ordines, genera, species, adjectis synonymis, locis, observationibus, descriptionibus. Brunswick: C. Reichard, xiv + 15-439 + 30 pp. PDF
• Forel, A. 1895b. A fauna das formigas do Brazil. Boletim do Museu Paraense de Historia Natural e Ethnographia 1:89-139. PDF
• Forel, A. 1899b. Formicidae. [part]. Biologia Centrali-Americana Hym. 3:1-24. PDF
• Forel, A. 1922b. Glanures myrmécologiques en 1922. Revue Suisse de Zoologie 30:87-102. PDF
• Horn, W.; Kahle, I. 1935. Sammlungen, welche ihren Eigentümer gewechselt haben [Part 1]. Entomologische Beihefte aus Berlin-Dahlem 2:1-160.
• Kempf, W. W. 1951. A taxonomic study on the ant tribe Cephalotini (Hymenoptera: Formicidae). Revista de Entomologia (Rio de Janeiro) 22:1-244. PDF
• Kempf, W. W. 1958a. New studies of the ant tribe Cephalotini (Hym. Formicidae). Studia Entomologica (n.s.)1:1-168.
• Kempf, W. W. 1972b. Catálogo abreviado das formigas da região Neotropical. Studia Entomologica 15:3-344. PDF
• Klug, F. 1824. Entomologische Monographien. Berlin: Reimer, 242 pp. PDF
• Latreille, P. A. 1802a. Histoire naturelle des fourmis, et recueil de mémoires et d'observations sur les abeilles, les araignées, les faucheurs, et autres insectes. Paris: Impr. Crapelet (chez T. Barrois), xvi + 445 pp. PDF
• Mayr, G. 1863a. Formicidarum index synonymicus. Verhandlungen der Kaiserlich-Königlichen Zoologisch-Botanischen Gesellschaft in Wien 13:385-460. PDF
• Mayr, G. 1865. Formicidae. In: Novara Expedition 1865. Reise der Österreichischen Fregatte "Novara" um die Erde in den Jahren 1857, 1858, 1859. Zoologischer Theil. Bd. II. Abt. 1. Wien: K. Gerold's Sohn, 119 pp. PDF
• Oliveira, A. M.; Powell, S.; Feitosa, R. M. 2021. A taxonomic study of the Brazilian turtle ants (Formicidae: Myrmicinae: Cephalotes). Revista Brasileira de Entomologia 65 (3):52 pp. e20210028. [online early] 10.1590/1806-9665-RBENT-2021-0028 PDF
• Retzius, A. J. 1783. Caroli de Geer. Genera et species insectorum e generosissimi auctoris scriptis extraxit, digessit, Latine quoad partem reddidit, et terminologiam insectorum Linneanam addidit. Lipsiae [= Leipzig]: Cruse, 220 pp. PDF
• Roger, J. 1863b. Verzeichniss der Formiciden-Gattungen und Arten. Berliner Entomologische Zeitschrift 7(Beilage):1-65. PDF
• Santschi, F. 1919f. Nouveaux formicides de la République Argentine. Anales de la Sociedad Cientifica Argentina 87:37-57. PDF
• Santschi, F. 1920f. Nouvelles fourmis du genre Cephalotes Latr. Bulletin de la Société Entomologique de France 1920:147-149. PDF
• Santschi, F. 1939f. Résultats scientifiques des croisières du navire-école belge, "Mercator". XIV. Formicidae s. lt. Mémoires du Musée Royal d'Histoire Naturelle de Belgique (2)15:159-167. PDF
• Smith, F. 1853 ("1854"). Monograph of the genus Cryptocerus, belonging to the group Cryptoceridae - family Myrmicidae - division Hymenoptera Heterogyna. Transactions of the Entomological Society of London (2)2:213-228. PDF
• Smith, F. 1858a. Catalogue of hymenopterous insects in the collection of the British Museum. Part VI. Formicidae. London: British Museum, 216 pp. PDF
• Wheeler, W. M. 1908a. The ants of Porto Rico and the Virgin Islands. Bulletin of the American Museum of Natural History 24:117-158. PDF