Input (grade 12): Stegosaurus stenops, meaning "narrow-faced roof lizard", was named by Marsh in 1887, with the holotype having been collected by Marshal Felch at Garden Park, north of Cañon City, Colorado, in 1886.
Output (grade 5): Stegosaurus stenops: Named by Marsh in 1887, it was discovered near Cañon City, Colorado, in 1886.