Reproduction in Early Amniotes
@article{Sander2012ReproductionIE, title={Reproduction in Early Amniotes}, author={P. Sander}, journal={Science}, year={2012}, volume={337}, pages={806 - 808} }
Recent fossil finds help to explain why the early fossil record is dominated by live-bearing amniotes, although live-bearing amniotes evolved later than egg-laying ones. The conquest of dry land by vertebrate animals began with the evolution of the first four-legged, amphibious animals ∼360 million years ago (1, 2). Amniotes originated ∼50 million years later (1) and have since become the most diverse clade of land-living vertebrates, including mammals, turtles, lizards, snakes, crocodiles, and… CONTINUE READING
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