Camptosaurus aphanoecetes, which means “flexible lizard hiding in plain sight,” was a medium-sized plant-eating dinosaur that lived about 145–150 million years ago during the late Jurassic Period. Remains of Camptosaurus have been found in North America and, according to some paleontologists, in England as well. Although the Camptosaurus skeleton on display at Carnegie Museum of Natural History was discovered in 1922, it wasn’t studied in detail until relatively recently.
On exhibit in Pittsburgh for more than six decades, still half buried in Jurassic sandstone, the skeleton was fully removed from the rock in 2005–2006 to transform it into a three-dimensional mount. After the specimen was completely unearthed, it was discovered to show differences with fossils of the dinosaur species it was long thought to represent, Camptosaurus dispar. So, in 2008, the skeleton was established as the type, or name-bearing, specimen of the new species Camptosaurus aphanoecetes by scientists Kenneth Carpenter and
This Camptosaurus skeleton was excavated by Earl Douglass and his field crew from rocks belonging to the Morrison Formation in the Carnegie Quarry at Dinosaur National Monument in Utah. Today it is on display at Carnegie Museum of Natural History.