Cenozoic Earth ] Back | Next >

 42 million years ago

Mean atmospheric O2
 130% of modern level

Mean atmospheric CO2
 2x pre-industrial level

Mean temperature
 4C above modern level

Cenozoic Earth - Mature Eurohippus compared to a modern adult horse; odd-toed ungulates; hooved feet; Equu; scale reference - Natural History Illustration Geologic Time Scale

 Era: Cenozoic
  Period: Paleogene
   Epoch: Eocene
    Age: Lutetian


Eurohippus & horse compared

Mature Eurohippus 42 million years ago are compared to a modern adult horse (Equus ferus caballus). Eurohippus is only about 20 inches long and weighs just a few pounds*, while the modern horse is 6 feet tall at the shoulder and weighs 1,000 pounds.

* Values are estimates only based upon available paleontological data.



Copyright Walter B. Myers. All rights reserved.

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