Early origin of viviparity and multiple reversions to oviparity in squamate reptiles.

  title={Early origin of viviparity and multiple reversions to oviparity in squamate reptiles.},
  author={R Alexander Pyron and Frank T Burbrink},
  journal={Ecology letters},
  volume={17 1},
Viviparity has putatively evolved 115 times in squamates (lizards and snakes), out of only ~ 140 origins in vertebrates, and is apparently related to colder climates and other factors such as body size. Viviparity apparently evolves from oviparity via egg-retention, and such taxa may thus still have the machinery to produce thick-shelled eggs. Parity mode is also associated with variable diversification rates in some groups. We reconstruct ancestral parity modes accounting for state-dependent… CONTINUE READING
Recent Discussions
This paper has been referenced on Twitter 46 times over the past 90 days. VIEW TWEETS
69 Citations
55 References
Similar Papers


Publications citing this paper.
Showing 1-10 of 69 extracted citations


Publications referenced by this paper.
Showing 1-10 of 55 references

The evolution of viviparity opens opportunities for lizard radiation but drives it into a climatic cul-de-sac

  • D. Pincheira-Dinoso, T. Tregenza, M. J. Witt, D. J. Hodgson
  • Global Ecol. Biogeogr.,
  • 2013
Highly Influential
8 Excerpts

Slaying dragons: limited evidence for unusual body size evolution on islands

  • S. Meiri, P. Raia, A. B. Phillimore
  • J. Biogeogr.,
  • 2011
Highly Influential
3 Excerpts

Are viviparity and egg-guarding evolutionarily labile in squamates? Herpetologica

  • D. G. Blackburn
  • 1999
Highly Influential
17 Excerpts

The evolution of viviparity in reptiles: an ecological analysis

  • R. Shine
  • In Biology of the Reptilia. (eds
  • 1985
Highly Influential
20 Excerpts

Similar Papers

Loading similar papers…