Ancient trackways in seabed mud show animals moved purposefully 10 million years before the Cambrian Explosion.

A team of paleontologists led by National Geographic Explorer Paul Sereno uncovered a trove of dinosaur fossils in the Sahara ...

MR. W. S. BISAT'S paper on “The Carboniferous Goniatites of the North of England and their Zones” (Proc. Yorks. Geol. Soc., N.S. vol. 20, 1924, pp. 40-124 and PI. I.-X.) must take rank as one ...