Tegopelte Trackway Fossil (IMAGE) University of Saskatchewan Caption This shows Burgess Shale arthropod trackways. (a-b) Detail of the beginning of ROM 61454 and line drawing. (c) ROM 61455, showing a gradual turn. (d) ROM 61456, showing a sharp turn with outer splaying of tracks. Scale bars, 100 mm. Credit Photo: Royal Ontario Museum Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.