Fossil skulls from Wisconsin, Lake Michigans Left Coast, a blog by Elizabeth Fagan

Wisconsin Dimetrodon Skull

Dinosaurs thundered, flew, scampered, or what have you, in the Mesozoic Era (252.17–66 million years ago). They were neither lizards nor reptiles, but something else altogether. Scientists declare that a group of small meat-eating dinosaurs were the evolutionary predecessors of modern birds. Remarkably, birds descended from such dinosaurs as Velociraptor, the terrifying creature of Jurassic … Continue reading Wisconsin Dimetrodon Skull