Palaeos: Cenozoic | ![]() |
Paleocene Epoch |
Paleogene Period | Paleocene |
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The pantodont Coryphodon, as reconstructed by Heinrich Harder. At the time of their existence, pantodonts were the largest herbivorous mammals. According to Wikipedia, Coryphodon reached about a metre in height and a weight of half a tonne, and also had the dubious distinction of having the smallest brain/body weight ratio of any mammal living or extinct.