The Hyaenodontid <I>Galecyon</I> (IMAGE) Johns Hopkins Medicine Caption An artist's rendition of the shape of Galecyon, with its fossilized bones laid out anatomically. Background, the Willwood Formation in the southern Bighorn Basin of Wyoming, where the bones were found. Right, the humerus (arm) bone of Galecyon. Credit Courtesy of the <I>Journal of Vertebrate Paleontology</i> Usage Restrictions None 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.