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Odd-toed ungulates


Plains Zebras
Scientific classification
Kingdom:Animalia
Phylum:Chordata
Class:Mammalia
Order:Perissodactyla
Families

Equidae
Tapiridae
Rhinocerotidae

The odd-toed ungulates or Perissodactyla are large to very large browsing and grazing mammals with relatively simple stomachs and a large middle toe. The members of the order fall into two groups: horses, which have only one toe and tend to be fast runners with long legs, and the suborder Ceratomorpha, which contains two families of slower-moving, thick-set animals with several functional toes: the tapirs and the rhinoceroses.

The odd-toed ungulates arose in what is now North America in the late Paleocene, less than 10 million years after the dinosaurs died out. By the start of the Eocene (55 million years ago) they had diversified and spread out to occupy several continents. The horses and tapirs both evolved in North America; the rhinoceroses appear to have developed in AsiaThe continent of Asia is defined by subtracting Europe and Africa from the great land mass of Africa-Eurasia. The boundaries are vague, especially between Asia and Europe: Asia and Africa meet somewhere near the Suez Canal. The boundary between Asia and E from tapir-like animals and then reinvaded the Americas during the middle Eocene (about 45 million years ago). There were 12 families, of which only three survive. These families were very diverse in form and size; they included the enormous brontotheres and the bizarre chalicotheres . The largest perissodactyl, an Asian rhinoceros called Paraceratherium , reached 12 tonnes—more than twice the weight of an elephantThis page is about the animal, see elephant (disambiguation) for more meanings. Loxodonta Loxodonta cyclotis Loxodonta africana Elephas Elephas maximus Proboscidea is an order including only one family, Elephantidae or the elephants with 3 species: the Sa!

Perissodactyls were the dominant group of large terrestrial browsers right through the OligoceneThe Oligocene epoch is a geologic period of time that extends from about 33. 7 million to 23. 8 million years before the present (BP). As with other older geologic periods, the rock beds that define the period are well identified, but the exact dates of t. However, the rise of grasses in the MioceneThe Miocene Epoch is a period of time that extends from about 5 million to 24 million years before the present. As with other older geologic periods, the rock beds that define the start and end are well identified, but the exact dates of the start and end (about 20 million years ago) saw a major change: the even-toed ungulateSuidae Hippopotamidae Tayassuidae Camelidae Tragulidae Moschidae Cervidae Giraffidae Antilocapridae Bovidae The even-toed ungulates form the mammal order Artiodactyla . They are ungulates whose weight is borne about equally by the third and fourth toes, rs with their more complex stomachs were better able to adapt to a coarse, low-nutrition diet, and soon rose to prominence. Nevertheless, many odd-toed species survived and prospered until the late PleistoceneThe Pleistocene epoch is part of the geologic timescale, usually dated as 1. 6 million to 10,000 years before present, with the end date expressed in radiocarbon years. It covers most of the latest period of repeated glaciation, up to and including the Yo (about 10,000 years ago) when they faced the pressure of human hunting and habitat change.

The three surviving families of odd-toed ungulate are classified as follows.



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Odd-toed Ungulate *** Rhinoceros Equus Zebra Years Large Tapir

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