By Far the Most Complete Super Massive Dinosaur Skeleton (image) Drexel University Share Print E-Mail Caption Of the 142 types of bones not including the skull, 100 types of bones, or 70.4 percent, are represented in the Dreadnoughtus skeleton. Skull bones from any titanosaur are extremely rarely recovered. Credit Lacovara Lab, Drexel University Usage Restrictions None 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.