Stephen A. Czerkas

Stephen Andrew Czerkas (born September 19, 1951, in Alhambra, California; died January 22, 2015) was an American sculptor and paleontologist. He frequently worked as a contributor to both museums and the motion picture industry, and was later the director and co-founder of The Dinosaur Museum, which purchased the Archaeoraptor fossil chimera. His life-sized replicas of dinosaurs, including members of the Deinonychus and Allosaurus genera, were among the first to incorporate accurate feathering and dorsal spines.