Horns, Tusks, and Flippers
The Evolution of Hoofed Mammals
Donald R. Prothero, Robert M. Schoch
Since the extinction of the dinosaurs, hoofed mammals have been the planet's dominant herbivores. Native to all continents except Australia and Antarctica, they include not only even-toed artiodactyls (pigs, hippos, camels, deer, antelopes, giraffes, sheep, goats, and cattle) and odd-toed perissodactyls (horses and rhinos), but also tethytheres (el...
First Published in 1993