Dietary specializations and diversity in feeding ecology of the earliest stem mammals

@article{Gill2014DietarySA,
  title={Dietary specializations and diversity in feeding ecology of the earliest stem mammals},
  author={Pamela G. Gill and Mark A. Purnell and Nick Crumpton and Kate Robson Brown and Neil J. Gostling and Marco Stampanoni and Emily J. Rayfield},
  journal={Nature},
  year={2014},
  volume={512},
  pages={303-305}
}
The origin and radiation of mammals are key events in the history of life, with fossils placing the origin at 220 million years ago, in the Late Triassic period. The earliest mammals, representing the first 50 million years of their evolution and including the most basal taxa, are widely considered to be generalized insectivores. This implies that the first phase of the mammalian radiation—associated with the appearance in the fossil record of important innovations such as heterodont dentition… 

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