Adinotherium

The fractal complexity of the enamel crests and the occlusal surface tooth area of A. ovinum teeth from the second premolar to the third molar both varied with age, making both of them useful tools for age estimation in this species and other toxodontids. Enamel crest complexity decreased as the animal matured due to wear, while the area of the tooth's occlusal surface was greater in adults than juveniles due to a combination of both wear and increase in overall size of the teeth of adults.^[6]

Adinotherium had highly hypsodont dentition, which may have been an adaptation for grazing on grasses, habitats heavily featuring which were spreading throughout South America at the time Adinotherium was extant.^[7] Dental microwear, however, shows that Adinotherium was predominantly a browser.^[8]

• Croft, D.A., Flynn, J.J. and Wyss, A.R. 2004. Notoungulata and Litopterna of the Early Miocene Chucal Fauna, Northern Chile. Fieldiana Geology 50(1):1-52.
• McKenna, Malcolm C., and Bell, Susan K. 1997. Classification of Mammals Above the Species Level. Columbia University Press, New York, 631 pp. ISBN 0-231-11013-8
• Palmer, T.S. 1904. Index Generum Mammalium: a List of the Genera and Families of Mammals. North American Fauna 23:1-984.

• Media related to Adinotherium at Wikimedia Commons

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