Lihoreau, F. Ducrocq, S. 2007 89-105 The Evolution of Artiodactyls Johns Hopkins University Press Baltimore Prothero, D. R. Foss, S. E. Siamotherium_krabiense Microbunodon_minimum Microbunodon_silistrensis Anthracotherium_magnum Anthracotherium_monsvialense Anthracotherium_chaimanei Anthracotherium_pangan Anthracokeryx_thailandicus Anthracokeryx_ulnifer Heptacodon_occidentalis Bothriogenys_fraasi Brachyodus_aequatorialis Brachyodus_onoideus Aepinacodon_americanus Bothriodon_velaunus Elomeryx_crispus Elomeryx_armatus Elomeryx_borbonicus Arretotherium_acridens Afromeryx_zelteni Sivacobus_palaeindicus Hemimeryx_blandfordi Merycopotamus_pusillus Merycopotamus_dissimilis Merycopotamus_medioximus Libycosaurus_anisae Libycosaurus_petrocchii Osteology Maximum Parsimony Based on reanalysis of the original matrix. Lihoreau_et_Ducrocq_2007a