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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 - Several Early Cretaceous Caudipteryx amidst Williamsonia 125 million years ago in what is today China; prehistoric birds - Natural History Illustration Geologic Time Scale

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


Caudipteryx amidst Williamsonia

Peacock-sized theropod dinosaurs of the genus Caudipteryx wander a landscape dominated by cycad-like seed plants of the genus Williamsonia 125 million years ago in what is today China.

Caudipteryx was a maniraptoran with a combination of reptile and bird-like features, including soft downy feathers that covered its body and a broad feathered tail. It could not fly, but was probably a swift runner.



Copyright Walter B. Myers. All rights reserved.

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