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Eohippus (Horse) Hyracotherium Real Fossil Tooth & Display Box SDB #2052 For Sale


Eohippus (Horse) Hyracotherium Real Fossil Tooth & Display Box SDB #2052
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Eohippus (Horse) Hyracotherium Real Fossil Tooth & Display Box SDB #2052:
$39.99

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This is a neat piece - it\'s a fossil tooth from Eohippus (Hyracotherium), a primitive horse from the Eocene time period, approximately 50 Million years ago. This tooth measures1 centimeter in length and comes in a nice display box.


A primitive horse tooth fossil like this one is especially interesting if you understand more about the evolution of the horse. Here is some information from Wikipedia: \"The evolution of the horse, a mammal of the family Equidae, occurred over a geologic time scale of 50 million years, transforming the small, dog-sized, forest-dwelling Eohippus into the modern horse. Paleozoologists have been able to piece together a more complete outline of the evolutionary lineage of the modern horse than of any other animal. Eohippus appeared in the Ypresian (early Eocene), about 52 million years ago. It was an animal approximately the size of a fox, with a relatively short head and neck and a springy, arched back. It had 44 low-crowned teeth. For a span of about 20 million years, Eohippus thrived with few significant evolutionary changes.


This is a great educational piece! We have other primitive horse fossils available, including Mesohippus jaw sections (which evolved from Eohippus) so be sure to check out our other listings!

I am so confident that you\'ll love this item that I offer a 100% money back guarantee - when you receive the item if you\'re not happy for any reason, send it back within 14 days and I\'ll refund your purchase price. THE MONEY BACK GUARANTEE IS NOT AVAILABLE FOR ITEMS THAT HAVE BEEN ALTERED IN ANY WAY BY THE BUYER. We are happy to combine shipping! I\'m also happy to hold off on shipping if you want to watch my sales for several weeks and then combine shipping in the same box.

PLEASE NOTE: We appreciate the business of our international customers! We request that international buyers have signature confirmation tracking or insurance on their packages. PLEASE INFORM US when you make a purchase if you would like to add signature confirmation or insurance to your order, and we can let you know what the additional cost would be. Packages may still be shipped internationally without signature confirmation or insurance, but the buyer would assume responsibility if the package was lost or stolen. The buyer is responsible for any customs or duty fees that are charged by their country.

THANK YOU VERY MUCH FOR LOOKING! Check out a variety of other amazing items in our store at Put us on your favorite sellers list and watch our sales that end each Saturday!

EohippusFrom Wikipedia, the free encyclopediaJump to: navigation, searchEohippus
Temporal range: YpresianPreЄЄOSDCPTJKPgNNational Museum of Natural History, Washington, D.C.Scientific />(Marsh, 1876)Binomial name†E. angustidens
(Cope, 1875)Synonyms
  • Eohippus validus
  • Hyracotherium angustidens
  • H. a. angustidens
  • H. a. etsagicum
  • H. vasacciensis
  • H. v. vasacciensis
  • H. cusptidatum
  • H. seekinsi
  • H. loevii
  • Orohippus angustidens
  • Orohippus cuspidatus
  • Orohippus vasacciensis
  • Lophiotherium vasacciense

Eohippus is an extinct genus of small equid ungulates.[1] The only species is E. angustidens, which was long considered a species of Hyracotherium. Its remains have been found in North America and date to the Early Eocene (Ypresian) stage.[2]

Discovery[edit]Restoration by Heinrich HarderRestoration by Charles Knight

In 1876, Othniel C. Marsh described a skeleton as Eohippus validus, from the Greek ηώς (eōs, \"dawn\") and ιππος (hippos, \"horse\"), meaning \"dawn horse\". Its similarities with fossils described by Richard Owen were formally pointed out in a 1932 paper by Sir Clive Forster Cooper. E. validus was moved to the genus Hyracotherium, which had priority as the name for the genus, with Eohippus becoming a junior synonym of that genus. Hyracotherium was recently found to be a [paraphyletic] group of species, and the genus now includes only H. leporinum. E. validus was found to be identical to an earlier-named species, Hyracotherium angustidens (Cope, 1875), and the resulting binomial is thus Eohippus angustidens.

Common misconception on size[edit]

In elementary-level textbooks, Eohippus is commonly described as being \"the size of a small Fox Terrier\", despite the Fox Terrier being about half the size of Eohippus. This arcane analogy was so curious that Stephen Jay Gould wrote an essay about it (\"The Case of the Creeping Fox Terrier Clone\", essay #10 in his book, Bully for Brontosaurus), in which he concluded that Henry Fairfield Osborn had so described it in a widely distributed pamphlet, Osborn being a keen fox hunter who made a natural association between horses and the dogs that accompany

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