Excavation Map (IMAGE) Radiological Society of North America Caption This is a digitized image of original excavation field map from Halberstadt, 1923. Inset is magnification of fossilized vertebra. Credit Courtesy of <i>Radiology</i> and RSNA Usage Restrictions Use with appropriate credit 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.