But this land, even during the Middle Devonian period, was never submerged under the sea. As Ver Straeten traced eleven of the lines, they all converged at a single point. It was then that he ...

FOR more than, a century, since the days of the pioneer workers on the Old Red Sandstone, the osteolepid fishes have proved a source of difficulty to vertebrate palæontologists, and even more so ...

Learn about the time period that took place 416 to 359 million years ago. 4 min read When the Devonian period dawned about 416 million years ago the planet was changing its appearance. The great ...