A new early Eocene deperetellid tapiroid illuminates the origin of Deperetellidae and the pattern of premolar molarization in Perissodactyla

Convergence of Afrotherian and Laurasiatherian Ungulate-Like Mammals: First Morphological Evidence from the Paleocene of Morocco

(2016) Emmanuel Gheerbrant et al.   PLoS One

The Identity and Homology of the Postprotocrista and its Role in Molarization of Upper Premolars of Perissodactyla (Mammalia)

(2014) Luke Holbrook   JOURNAL OF MAMMALIAN EVOLUTION

Replaying evolutionary transitions from the dental fossil record

(2014) Enni Harjunmaa et al.   NATURE

Diversity and Evolution of Hunter-Schreger Band Configuration in Tooth Enamel of Perissodactyl Mammals

(2010) Wighart Von Koenigswald et al.   ACTA PALAEONTOLOGICA POLONICA

First skull of Orthaspidotherium edwardsi (Mammalia, “Condylarthra”) from the late Paleocene of Berru (France) and phylogenetic affinities of the enigmatic European family Pleuraspidotheriidae

(2010) SANDRINE LADEVÈZE et al.   JOURNAL OF VERTEBRATE PALEONTOLOGY

Molarization of the premolars in the Perissodactyla.

(2010) P. M. BUTLER   PROCEEDINGS OF THE ZOOLOGICAL SOCIETY OF LONDON