Brontotheriidae Marsh 1873

Abstract

Family BRONTOTHERIIDAE Marsh 1873 Discussion: Mader (1989; 1998) divided the Brontotheriidae into two relatively large monophyletic subfamilies: the Dolichorhininae and the Brontotheriinae (= Telmatheriinae, sensu Mader 1989). Eotitanops and Palaeosyops were resolved as sister genera to these subfamilies, but were not found to comprise a monophyletic taxon. Recent phylogenetic analyses by Mihlbachler (2008) generally support this conclusion. Eotitanops and Palaeosyops are accorded their own subfamilies in the present revision.Published as part of Mader, Bryn J., 2010, A species-level revision of the North American brontotheres Eotitanops and Palaeosyops (Mammalia, Perissodactyla), pp. 1-43 in Zootaxa 2339 on page 3, DOI: 10.5281/zenodo.19327