Tag Archives: extinctions

Non-marine animals (amphibians, reptiles, birds and mammals) have apparently experienced at least 10 distinct episodes of intensified extinctions over the past 300 million years. Eight of these extinction events are concurrent with known marine mass extinctions, which previously yielded evidence for an underlying period of 26.4 to 27.3 million years …

Multiple supernova explosions about 65 light-years away may have contributed to the ozone depletion and several subsequent extinction events at the Devonian-Carboniferous boundary, approximately 359 million years ago, according to a new paper published in the Proceedings of the National Academy of Sciences. An artist’s rendition of a supernova explosion. …