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December 1985
Vol. 15, Fasc. 3
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Print ISSN: 0031-0247
Online ISSN: 2274-0333
Frequency: biannual

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PalaeovertebrataVol. 15, Fasc. 3:159-172. 1985
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Nouvelle quantification de l'Hypsodontie chez les Theridomyidae : l'exemple de Theridomys ludensis nov. sp.
Monique Vianey-Liaud
Keywords: dental morphology; evolution; Hypsodonty; Oligocene; Theridomyidae
 

Cite this article: Vianey-Liaud M., 1985. Nouvelle quantification de l'Hypsodontie chez les Theridomyidae : l'exemple de Theridomys ludensis nov. sp. Palaeovertebrata 15 (3): 159-172.

Abstract

A new example of parallelism in the dental pattern ofthe Theridomyidae is illustrated by the description ofa new species: Theridomys Iudensis from the standard level of Antoingt (middle Oligocene). Considering the occurence ofthis parallelism phenomenon. the use of numerous qualitative and quantitative criteria is essential to characterize the different stages ofthe different evolutive lineages. Thus, a new simple parameter is proposed (CHY = H+l/0,5 L) to estimate hypsodonty of the medium hypsodont Rodentia. 



Published in Vol. 15, Fasc. 3 (1985)

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