"Five lines of ornithichnites fossil footprints", 1836-1840, 69 x 164 cm., Pen and ink on linen Image courtesy of Edward and Orra White Hitchcock Papers, Amherst College Archives and Special Collections, Amherst College Library.
This banner shows the five kinds of ornithicnites (meaning "birdlike traces"), fossil footprints left by prehistoric creatures that Hitchcock first imagined as gigantic birds.