Did this mass extinction event trigger dawn of the dinosaurs?

New research suggests that a series of huge volcanic eruptions, 233 million years ago, led to a mass extinction event that heralded the dawn of the dinosaurs. Source: https://earthsky.org/earth/mass-extinction-event-trigger-dawn-of-dinosaurs…

Chance fossil discovery reveals ancient marine reptile

Scientists raced against a rising tide to recover a tantalizing fossil on an island in southeast Alaska. It turned out to be a species new to science. Source: https://earthsky.org/earth/alaskan-fossil-reveals-new-marine-reptile-species…