Facts about Hyracotherium, an extinct prehistoric animal

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Dinosaur Jungle   >   Other Prehistoric Animals   >   Hyracotherium

Hyracotherium



Hyracotherium
Click here for more Hyracotherium Pictures

Scientific Classification
  Kingdom Animalia
  Phylum Chordata
  Class Mammalia
  Order Perissodactyla
  Family Palaeotheriidae
  Genus Hyracotherium
Hyracotherium (also sometimes known as "Eohippus") was a genus of mammalian herbivore that lived in Asia, Europe, and North America during the Eocene between about 60 and 45 million years ago. It was once thought to be ancestral to horses, but today some scientists believe that it may also be ancestral to rhinoceroses and tapirs.

Hyracotherium was about the size of a dog, around 9 inches (20 centimeters) tall at the shoulder, and about 2 feet (60 centimeters) in length. It had four toes on each of its front feet, and 3 toes on each hind foot.

Hyracotherium was named by Sir Richard Owen in 1841 - its name means "Hyrax-like beast". The alternate name, "Eohippus" was chosen by Othniel C. Marsh in 1876, and means "dawn horse". Marsh did not realize that the animal that he had named, was the same as Hyracotherium, hence the different name - however, now that we know that they are the same animal, Hyracotherium takes priority, as it was the first name used.

One curious piece of trivia about Hyracotherium is that many books describe the animal as being about the size of a fox terrier. Stephen Jay Gould once wrote an essay researching this curiously repeated description, and concluded that it had first appeared in the writings of Henry Fairfield Osborn, and that many subsequent authors have simply repeated the description.

Hyracotherium Timeline:



Hyracotherium were herbivorous (plant-eating) mammals that lived between 60 and 45 million years ago

Hyracotherium were herbivorous (plant-eating) mammals that lived between 60 and 45 million years ago


Related Information & Resources


See Also

Hyracotherium Books


Here are some books from Amazon.com:

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Hyracotherium (Prehistoric Beasts)
By Marc Zabludoff

Brand: Benchmark Books
Library Binding (32 pages)

Hyracotherium (Prehistoric Beasts)
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  • Used Book in Good Condition
Product Description:
Presents Hyracotherium, describing its physical characteristics, when and where it lived, how it lived, what other animals lived alongside it, and the possible reasons it became extinct.
Evolution of the Horse
By Melanie Patton

Independently published
Paperback (105 pages)

Evolution of the Horse
List Price: $24.88*
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Product Description:
The evolution of the horse is long and complex, but well covered in this textbook. The human influence is also discussed in the creation of modern day breeds.
Dawn Horse: Eohippus (Graphic Prehistoric Animals)
By Gary Jeffrey

Smart Apple Media
Library Binding (32 pages)

Dawn Horse: Eohippus (Graphic Prehistoric Animals)
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Product Description:
"Provides a revealing look at the Dawn Horse through a fictional graphic novel story, accompanied by nonfiction facts and fossil record information"--
Species Of Hyracotherium And Allied Perissodactyla From The Wahsatch And Wind River Beds Of North America
By Jacob Lawson Wortman

Palala Press
Hardcover (40 pages)

Species Of Hyracotherium And Allied Perissodactyla From The Wahsatch And Wind River Beds Of North America
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Product Description:
This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work was reproduced from the original artifact, and remains as true to the original work as possible. Therefore, you will see the original copyright references, library stamps (as most of these works have been housed in our most important libraries around the world), and other notations in the work.

This work is in the public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work.

As a reproduction of a historical artifact, this work may contain missing or blurred pages, poor pictures, errant marks, etc. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.
Prehistoric Beasts 2: Doedicurus, Hyracotherium, Mastodon, Kromosaurus, Saber-toothed Cat
By Marc Zabludoff

Benchmark Books
Library Binding (2 pages)

Prehistoric Beasts 2: Doedicurus, Hyracotherium, Mastodon, Kromosaurus, Saber-toothed Cat
List Price: $154.65*
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Evolution of the Horse
By Melanie Patton

International Riding Academy
Released: 2018-03-05
Kindle Edition (161 pages)

Evolution of the Horse
 
Product Description:
The evolution of the horse is long and complex, but well covered in this textbook. The human influence is also discussed in the creation of modern day breeds.
American Hyracotherium (Perissodactyla, Equidae).
By David B. Kitts

American Museum of Natural History
Paperback
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American Hyracotherium (Perissodactyla, Equidae) Volume 110: Article 1
By David B. . Kitts

American Museum of Natural History ( AMNH ), 1956.
Paperback
 
American Hyracotherium (Perissodactula, Equidae), 1956, Bulletin of the American Museum of Natural History, 110 (1) : 1-60, 10 figures and 7plates.
By D. B. Kitts

American Museum of Natural History
Paperback
 


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