Dryolestidae
Encyclopedia
Dryolestidae was an abundant and diverse group of Mesozoic mammals. These mammals were different from their relatives by having the following two characteristics:
- Their upper and lower molars were shortened mesiodistally and widened labiolingually.
- The anterior root of lower molars were more robust and bigger.
Further reading
- Zofia Kielan-Jaworowska, Richard L. Cifelli, and Zhe-Xi Luo, Mammals from the Age of Dinosaurs: Origins, Evolution, and Structure (New York: Columbia University Press, 2004), 380-382.