The Paleozoic era's Silurian period saw animals and plants finally emerge on land. But first there was a period of biological regrouping following the disastrous climax to the Ordovician.

3 min read During the Ordovician period, part of the Paleozoic era, a rich variety of marine life flourished in the vast seas and the first primitive plants began to appear on land—before the ...

"This discovery allowed researchers to learn how these primitive plants evolved and reproduced during the Carboniferous Period, at the end of the Paleozoic Era," said Pedro Correia, according to ...