In this undated photo supplied by the PaleoAngola Project, Louis Jacobs and Nancy Stevens excavating part of a fossilized dinosaur. A paper published Wednesday March 16, 2011, in the Annals of the Brazilian Academy of Sciences describes a classic, long-necked, elephant-sized, plant-eating sauropod. The international team that found and identified the fossilized forelimb bone say it is from a new dinosaur, citing unique skeletal characteristics. (AP Photo/PaleoAngola Project/HO)
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