[dirtboy]

Miller's team ran an analysis that showed a temperature shift could theoretically have led to a preponderance of males. Other studies have shown that when there are too few females, eventually the population dies out.

Then one would expect that all reptilians would have died out, and not just dinosaurs.

[Junior]

I would have though so, too. Fortunately, the good doctors answered the question at the end of the piece:

But crocodiles and turtles had already evolved at the time of the great extinction 65 million years ago. How did they survive?

"These animals live at the intersection of aquatic and terrestrial environments, in estuarine waters and river beds, which might have afforded some protection against the more extreme effects of environmental change, hence giving them more time to adapt," the researchers wrote.

[JohnnyZ]

Then one would expect that all reptilians would have died out, and not just dinosaurs.

I'm assuming you didn't read the whole article:

But crocodiles and turtles had already evolved at the time of the great extinction 65 million years ago. How did they survive?

etc.