Linnaeus and Cuvier have been my two gods, though in very different ways, but they were mere school-boys to old Aristotle.
Aristotle did make progress beyond earlier philosophers, just as Darwin advanced beyond Linnaeus and Cuvier.
French anatomist who is considered the founder of comparative anatomy. He originated a system of zoological classification that grouped animals according to the structures of their skeletons and organs. Cuvier extended his system to fossils; his reconstructions of the way extinct animals looked, based on their skeletal remains, greatly advanced the science of paleontology.