Excavation Map (image) Radiological Society of North America Share Print E-Mail Caption This is a digitized image of original excavation field map from Halberstadt, 1923. Inset is magnification of fossilized vertebra. Credit Courtesy of Radiology and RSNA Usage Restrictions Use with appropriate credit Share Print E-Mail 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.