Hidden dental diversity in the oldest terrestrial apex predator Dimetrodon.

  title={Hidden dental diversity in the oldest terrestrial apex predator Dimetrodon.},
  author={Kirstin S. Brink and Robert R. Reisz},
  journal={Nature communications},
  • K. BrinkR. Reisz
  • Published 7 February 2014
  • Environmental Science, Geography, Biology
  • Nature communications
Paleozoic sphenacodontid synapsids are the oldest known fully terrestrial apex predators. Dimetrodon and other sphenacodontids are the first terrestrial vertebrates to have strong heterodonty, massive skulls and well-developed labio-lingually compressed and recurved teeth with mesial and distal cutting edges (carinae). Here we reveal that the dentition of Dimetrodon and other sphenacodontids is diverse. Tooth morphology includes simple carinae with smooth cutting edges and elaborate enamel… 

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