Turtles as diapsid reptiles

@article{Rieppel1996TurtlesAD,
  title={Turtles as diapsid reptiles},
  author={Olivier Rieppel and Michael Debraga},
  journal={Nature},
  year={1996},
  volume={384},
  pages={453-455}
}
THE traditional classification of reptiles is based on a single key character, the presence and style of fenestration in the temporal region of the skull. Snakes, lizards, crocodiles, dinosaurs and others are 'diapsids', in that they have (at least primitively) two holes in the temporal region. Reptiles in which the skull is completely roofed, with no temporal fenestration, are the 'anapsids'. These include many Palaeozoic forms such as captorhinomorphs, procolophonids and pareiasaurs, but also… Expand
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