Concepts and Controversy

Like so many other areas of study in Paleontology there is controversy in interpreting Pterosaurs. Where they successful fliers? Did they walk on two legs or four? Were they agile on the ground? In the air? Were they exothermic? Why did they become extinct?

This section will discuss some of these questions and perhaps provide some answers. However the reader is encouraged to draw their own conclusions.

Table of Contents
1) Origins

2) Bipedalism versus Quadrupedalism.

3) A question of flight: Active or passive?

4) Endothermy or Ectothermy?

5) Extinction.

© Patrick Lyons 1998.