Dinosaurs. What springs to mind when they’re mentioned? The colossal sauropods? Packs of feisty feathered fiends? Or huge herds of hadrosaurs, chomping their way across the plains of long lost worlds? Most, including myself, will automatically default to any one of these archetypal images when dinosaurs come up in conversation (what, you mean it’s not that frequent for normal people??) But we often neglect the earliest dinosaurs from long before these, spectacular organisms that gave birth to the most successful, and ongoing, terrestrial vertebrate radiation of all time.