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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 - Portrait of a Zhejiangopterus, genus of a moderately large pterosaur from Early Cretaceous China 125 million years ago; Pterodactyl; Pterodactyls; pterosaur; pterodactyloid pterosaurs; Pterodactyluss - Natural History Illustration Geologic Time Scale

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


Zhenyuanopterus portrait

Zhenyuanopterus is the genus of a moderately large pterosaur with a wingspan of about 12 feet and weight of about 50 pounds. Known for its long needle-like teeth, this flying reptile soared in the skies of Early Cretaceous China about 125 million years ago and likely fed upon fish.



Copyright Walter B. Myers. All rights reserved.

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