Cenozoic Earth ] Back | Next >

 North America
 35 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 - Cenozoic Earth - An adult Brontotheriumm (AKA Megacerops) compared to a modern adult White Rhinoceros; Rhino; paleontology; herbivores; mammals; megafauna; Titanotheres; Titanothere; Brontotheres; Brontothere; Brontotheriidae; thunder beast; thunderbeast; Odd-toed ungulates; scale reference - Natural History Illustration Geologic Time Scale

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


Brontotherium & White Rhinoceros compared

An adult Brontotherium (AKA Megacerops) from 35 million years ago is compared to a modern adult White Rhinoceros (Ceratotherium simum). The Brontotherium is 8 feet tall at the shoulder and weighs 10,000 pounds*, while the White Rhinoceros is 6 feet tall at the shoulder and weighs 7,000 pounds.

* Values are estimates only based upon available paleontological data.



Copyright Walter B. Myers. All rights reserved.

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