Rudolph Zallinger (1919–1995) was an American-based artist notable for his mural The Age of Reptiles (1947) at Yale's Peabody Museum of Natural History and for the popular illustration known as March of Progress (1965), one of the world's most recognizable scientific images.
“The Age of Reptiles is a work of art, by its own nature inevitably transcending science or subverting it and bringing to it its own special glow.” – Vincent Scully -- Vincent Scully