INTRODUCTION TO PERISSODACTYLA (odd-toed ungulates.

The classification presented here follows that of U.S. paleontologist George Gaylord Simpson, which is generally accepted but modified in some fairly minor ways by other authors. The term Mesaxonia, introduced by the 19th-century paleontologist O.C. Marsh, is essentially synonymous with Perissodactyla.

The Perissodactyla comprise three families of living mammals: six species of horses (Equidae), four species of tapirs (Tapiridae), and five species of rhinoceroses (Rhinocerotidae).

Perissodactyla, as we know it today, is a small order of hoofed mammals, containing 17 Recent species in three families: Equidae (horses), Tapiridae (tapirs), and Rhinocerotidae (rhinoceroses).

One can determine the relationship between any organisms by comparing their taxonomic classification. If organisms do not have any classification in common, or only share the same kindom, phylum, or class, they are not very similar due to the fact that as the higher up a category of classification is, the more general it becomes.

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Major Characteristics - Evolution of Perissodactyla.

Diversity and evolutionary trends of the family Rhinocerotidae (Perissodactyla). Palaeogeography Palaeoclimatology Palaeoecology 141:13-34. Colbert M. W. and R. M. Schoch. 1998. Tapiroidea and other moropomorphs. Pages 569-582 in Evolution of Tertiary Mammals of North America. Volume 1.

Classification is the science that puts organisms into distinct groups to make their study easy and systematic. Modern scientific classification is based on structure and functions. Organisms with similar anatomical and morphological characteristics are placed in one group while those with different structures are grouped separately.

Perissodactyla Class By Brittney McDowell Rhinoerotidae Horse Description Taxonomy Kingdom- Animalia, Phylum- Chordata, Class- Mammalia, Order- Perissodactyla, Suborder- Ceratomorpha, Family-Rhinocerotidae: rhinoceroses, five species in four genera, Black rhinoceros, Diceros.

When moving, the Malayan tapir walks slowly with its head down, which probably allows it to pick up the scents of other tapirs. Individuals also communicate with shrill whistles. The Malayan tapir is a good climber, scaling steep slopes with relative ease, and when alarmed gallops off with surprising speed.

Eohippus is an extinct genus of small equid ungulates. The only species is E. angustidens, which was long considered a species of Hyracotherium.Its remains have been identified in North America and date to the Early Eocene stage.

Perissodactyl definition, having an uneven number of toes or digits on each foot. See more.

$Perissodactyla Classification Essay$

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ADW: Equus: CLASSIFICATION - Animal Diversity Web.

Perissodactyla An order of herbivorous, odd-toed, hoofed mammals, including the living horses, zebras, asses, tapirs, rhinoceroses, and their extinct relatives. They are defined by a number of unique specializations, but the most diagnostic feature is their feet.Class MAMMALIA Mammals are defined as vertebrates that possess hairs and mammary glands for feeding young. They also possess a four-chambered heart, a large cerebral cortex, three distinctive bones: incus, malleus and stapes in the middle ear, a diaphragm for breathing, heterodont and thecodont dentition, limbs attached under the body, dicondylic skull and acoelous vertebrae.Relationships Edit. The Perissodactyla and Artiodactyla is the largest portion of ungulates, and also comprise the majority of large land mammals. These two groups first appeared during the late Paleocene and early Eocene (about 54 million years ago), rapidly spreading to a wide variety of species on numerous continents, and have developed in parallel since that time.

HISTORY ARISTOTLE (384-322 BC) is often called the father of biological classification. His classification scheme referred to readily apparent groups, such as birds, fishes, whales, and bats, and he recognized the need for groups and group names in the study of the animal kingdom.Zebra s are mammals of the family Equidae. Zebras are African horses. They are in the same genus as the common horse, Equus caballus, and donkeys. Zebras are known for having many black and white stripes. There are three main species of zebra, Grevy's Zebra, the Plains Zebra, and the Mountain Zebra. All zebras have very short fur because they.