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
Released: September 1st, 2010
Library Binding (32 pages)

Hyracotherium (Prehistoric Beasts)
Lowest New Price: $30.93*
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Description:
Hyracotherium (Prehistoric Beasts)
  • Manufacturer: Benchmark Books
  • Brand: Brand: Benchmark Books
  • ISBN: 1608700348
  • EAN: 9781608700349
Details:
  • Product Category: Library Binding
  • Edition: 1
  • Number of Pages: 32
  • Author: Marc Zabludoff
  • Publication Date: September 1st, 2010
  • Release Date: September 1st, 2010
Physical Description:
  • Size: 9.25 Inches by 9.0 Inches by 0.5 Inches
  • Weight: 0.700629068636 Pounds
Features:
  • Used Book in Good Condition
Click here for more information
Species Of Hyracotherium And Allied Perissodactyla From The Wahsatch And Wind River Beds Of North America
By Jacob Lawson Wortman

Wentworth Press
Released: April 2nd, 2019
Paperback (38 pages)

Species Of Hyracotherium And Allied Perissodactyla From The Wahsatch And Wind River Beds Of North America
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Description:
Species Of Hyracotherium And Allied Perissodactyla From The Wahsatch And Wind River Beds Of North America
  • Manufacturer: Wentworth Press
  • ISBN: 1011954974
  • EAN: 9781011954971
Details:
  • Paperback
  • Number of Pages: 38
  • Author: Jacob Lawson Wortman
  • Publication Date: April 2nd, 2019
  • Release Date: April 2nd, 2019
Physical Description:
  • Size: 9.21 Inches by 6.14 Inches by 0.08 Inches
  • Weight: 0.14991433816 Pounds
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Evolution of the Horse
By Melanie Patton

Independently published
Released: August 30th, 2018
Paperback (105 pages)

Evolution of the Horse
Lowest New Price: $24.88*
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Description:
Evolution of the Horse
  • Manufacturer: Independently published
  • ISBN: 1719962456
  • EAN: 9781719962452
Details:
  • Paperback
  • Number of Pages: 105
  • Author: Melanie Patton
  • Publication Date: August 30th, 2018
  • Release Date: August 30th, 2018
Physical Description:
  • Size: 10.0 Inches by 8.0 Inches by 0.24 Inches
  • Weight: 0.5 Pounds
Click here for more information
Dawn Horse: Eohippus (Graphic Prehistoric Animals)
By Gary Jeffrey

Smart Apple Media
Released: January 1st, 2017
Library Binding (32 pages)

Dawn Horse: Eohippus (Graphic Prehistoric Animals)
List Price: $32.80*
Lowest Used Price: $29.48*
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Description:
Dawn Horse: Eohippus (Graphic Prehistoric Animals)
  • Manufacturer: Smart Apple Media
  • ISBN: 1625884079
  • EAN: 9781625884077
Details:
  • Product Category: Library Binding
  • Number of Pages: 32
  • Author: Gary Jeffrey
  • Publication Date: January 1st, 2017
  • Release Date: January 1st, 2017
Physical Description:
  • Size: 11.0 Inches by 9.25 Inches by 0.5 Inches
  • Weight: 0.75 Pounds
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Evolution of the Horse
By Melanie Patton

International Riding Academy
Kindle Edition (161 pages)

Evolution of the Horse
Lowest New Price: $21.88*
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Description:
Evolution of the Horse
  • Manufacturer: International Riding Academy
Details:
  • Kindle Edition
  • Format: Kindle eBook
  • Edition: 2
  • Number of Pages: 161
  • Author: Melanie Patton
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American Hyracotherium (Perissodactyla, Equidae).
By David B. Kitts

American Museum of Natural History
Paperback
Lowest Used Price: $15.00*
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Description:
American Hyracotherium (Perissodactyla, Equidae).
  • Manufacturer: American Museum of Natural History
Details:
  • Paperback
  • Edition: First Edition
  • Author: David B. Kitts
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