Platylithophycus Cartilage (image) American Museum of Natural History Share Print E-Mail Caption A high-magnification photo of the surface of the Platylithophycus cretaceus specimen, showing the tessellated calcified cartilage. Scale bar is 1 millimeter. Credit © AMNH/A. Bronson Usage Restrictions Can be used 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.