Dirks W. · Anemone R. L., Holroyd P. A., Reid D. J. (2009). "Phylogeny, Life History and the Timing of Molar Crown Formation in Two Archaic Ungulates, Meniscotherium and Phenacodus (Mammalia, 'Condylarthra')". Comparative Dental Morphology. Frontiers of Oral Biology. 13: 3-8. doi:10.1159/000242381. ISBN978-3-8055-9229-1. PMID19828961.
Dirks W. · Anemone R. L., Holroyd P. A., Reid D. J. (2009). "Phylogeny, Life History and the Timing of Molar Crown Formation in Two Archaic Ungulates, Meniscotherium and Phenacodus (Mammalia, 'Condylarthra')". Comparative Dental Morphology. Frontiers of Oral Biology. 13: 3-8. doi:10.1159/000242381. ISBN978-3-8055-9229-1. PMID19828961.