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 - Eurohippus in the ivy of a forest undergrowth 42 million years ago in what is today France; odd-toed ungulates; hooved feet; Equus - Natural History Illustration Geologic Time Scale

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



Equid ungulates of the genus Eurohippus huddle in a forest 42 million years ago in what is today France.

An ancient ancestor to modern horses, donkeys, and zebras, Eurohippus was about the size of a small dog and possessed three toes instead of a single hoof. While modern equines are adapted to the varying and sometimes harsh climates of grasslands, Eurohippus lived and foraged in the relative comfort of warm and moist forests.



Copyright Walter B. Myers. All rights reserved.

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