Kaliwatan sa bakukangon ang Onthophagus aries.^[1] Una ning gihulagway ni Kirby ni adtong 1825.^[2] Ang Onthophagus aries sakop sa kahenera nga Onthophagus, ug kabanay nga Scarabaeidae.^[1][3] Walay nalista nga matang nga sama niini.^[1]

1. ↑ ^{1.0 1.1 1.2} Roskov Y., Kunze T., Orrell T., Abucay L., Paglinawan L., Culham A., Bailly N., Kirk P., Bourgoin T., Baillargeon G., Decock W., De Wever A., Didžiulis V. (ed) (2019). "Species 2000 & ITIS Catalogue of Life: 2019 Annual Checklist". Species 2000: Naturalis, Leiden, the Netherlands. ISSN 2405-884X. TaxonID: 54716353. Retrieved 2019-11-11. {{cite web}}: |author= has generic name (help)CS1 maint: multiple names: authors list (link)
2. ↑ Kirby W. (1825) A description of such genera and species of insects, alluded to in the "Introduction to Entomology" of Messrs.Kirby and Spence, as appear not to have been before suffiently noticed or described , Transactions of the Linnean Society. London 14:563-572
3. ↑ Schoolmeesters P. (2019). Scarabs: World Scarabaeidae Database (version Jan 2019). In: Species 2000 & ITIS Catalogue of Life, 2019 Annual Checklist (Roskov Y., Ower G., Orrell T., Nicolson D., Bailly N., Kirk P.M., Bourgoin T., DeWalt R.E., Decock W., Nieukerken E. van, Zarucchi J., Penev L., eds.). Digital resource at www.catalogueoflife.org/annual-checklist/2019. Species 2000: Naturalis, Leiden, the Netherlands. ISSN 2405-884X.