VIII. One-Toed Ponies (Later Miocene, Pliocene & Pleistocene)

VIII. One-Toed Ponies (Later Miocene, Pliocene & Pleistocene)

From the later Miocene, Merychippus is the one of very first bona-fide quick plains grazers. (Simpson, 1961, called Merychippus “the fresh horse with a brand new lookup”). Merychippus undergone quick speciation, and you will gave go up so you’re able to at the least 19 the grazing horse varieties for the about three biggest groups. Which volatile burst out-of horse progression is oftentimes called the “merychippine light”. The three major organizations have been:

  1. Three-toed grazers called “hipparions”. These people were tremendously successful and split into cuatro genera at the very least 16 variety, fundamentally layer numerous niches to have small and higher grazers and you can web browsers. Continue reading “VIII. One-Toed Ponies (Later Miocene, Pliocene & Pleistocene)”