El següent és un [[cladograma]] simplificat dels prototeris, basat en els treballs de McKenna yi Bell<ref name=MKB>McKenna, M.C., y Bell, S.K. (1997), Classification of Mammals Above the Species Level., [[Columbia University Press]], New York. 0-231-11013-8. </ref> yi Kielan-Jaworowska ''et al.'':<ref name=KJH1>Kielan-Jaworowska, Z. & Hurum, J. H., 2001: Phylogeny and systematics of multituberculate mammals. Palaeontology: Vol. 4</ref><ref name=Kielan04>Kielan-Jaworowska, Z., Cifelli, R. L. & Luo, Z.-X., 2004: Mammals from the Age of Dinosaurs – origins, evolution, and structure. Columbia University Press, Nova York, 2004</ref>
