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 150 million years ago

Mean atmospheric O2
 130% of modern level

Mean atmospheric CO2
 7x pre-industrial level

Mean temperature
 3C above modern level

Mesozoic Earth - Close-up of a Compsognathus wandering a Jurassic forest surronded by ferns and a centipede - Natural History Illustration Geologic Time Scale

 Era: Mesozoic
  Period: Jurassic
   Epoch: Late
    Age: Kimmeridgian


Compsognathus portrait

A turkey-sized theropod dinosaur of the genus Compsognathus wanders a late Jurassic forest 150 million years ago in what is today Europe. A petit carnivore, it is believed Compsognathus was a fast and agile runner with excellent eyesight.



Copyright Walter B. Myers. All rights reserved.

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