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 125 million years ago

Mean atmospheric O2
 150% of modern level

Mean atmospheric CO2
 6x pre-industrial level

Mean temperature
 4C above modern level

Mesozoic Earth - An adult Caudipteryx compared to a modern adult peacock; rhino; herbivores; cerapods; ceratopsidae; ceratopsids; Mesozoic; Cretaceous; scale reference - Natural History Illustration Geologic Time Scale

 Era: Mesozoic
  Period: Cretaceous
   Epoch: Early
    Age: Aptian


Caudipteryx & peacock compared

An adult theropod dinosaur of the genus Caudipteryx from 125 million years ago is compared to a modern adult peacock (Pavo cristatus). Both the Caudipteryx and peacock are about 30 inches tall.

* Values are estimates only based upon available paleontological data.



Copyright Walter B. Myers. All rights reserved.

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