Evolution of amniotes
This chart shows the evolution of amniotes. The placement of Testudines (turtles) is currently still debated.
Source
Boundless vets and curates high-quality, openly licensed content from around the Internet. This particular resource used the following sources:
"OpenStax College, Reptiles. October 17, 2013."
http://cnx.org/content/m44689/latest/Figure_29_04_03.png
OpenStax CNX
CC BY 3.0.
