In September, I spent three weeks in Newfoundland, Canada working on world class Ediacaran fossil surfaces with Emily Mitchell, Charlotte Kenchington and Lucy Roberts. After eight hours of travelling, our bright red truck full of precision equipment, people and food arrived in the town of Portugal Cove South. We settled into ‘The Green House’, where we would be staying, and promptly collapsed in bed.
Evolutionary biomechanist and NERC DTP PhD student Luke Grinham’s research focuses on the evolutionary transition from a quadrupedal style of movement to a bipedal one in reptiles.
I tend to take two different but complimentary approaches to answering my research questions: observations and interpretations of fossil material, and musculoskeletal anatomy and biomechanics of living reptiles. These two directives frequently inspire and inform findings in each other. I’ll give a brief overview what I tend to do here!
Part 1 – Tracking the First Colonizers of Land
The Sun was setting fast. Only about half an hour before it sunk beneath the horizon. But that was just perfect. For that’s when the Sun’s low, raking rays clipped the surface of Tumblagooda Sandstone, perched high above the Murchison River gorge in Western Australia. And there, running across the surface, like sets of miniature railway tracks, were three sets of parallel rows of little footprints made by multi-legged arthropods about 430 million years ago. Each trackway was as wide as my hand. One animal had followed another, then veered off to the left. Another, more faint set, had cut across them, moments later. Each trackway marked the activity of these animals for maybe just 20 seconds of their lives hundreds of millions of years ago.