Did Horny Young Dinosaurs Cause Illusion of Separate Species?

The article highlights the Society of Vertebrate Paleontology's annual meeting held in Austin, Texas on October 17-20, 2007. Jack Horner of Montana State University in Bozeman argued that the species of dinosaurs are in fact juveniles of different ages that would have grown up to be bony-headed Pachycephalosaurus. Robert Sullivan of the State Museum of Pennsylvania speculated that juvenile pachycephalosaurs in Asia may have been misidentified as new species.