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 180 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 - A flock of reptilian Dorygnathus soars high over a rugged, Early Jurassic landscape of Wollemi Pine - Natural History Illustration Geologic Time Scale

 Era: Mesozoic
  Period: Jurassic
   Epoch: Early
    Age: Toarcian


Dorygnathus at altitude

A flock of pterosaurs of the genus Dorygnathus soars high over a rugged, Early Jurassic European landscape of coniferous trees of the genus Wollemi approximately 180 million years ago.

Dorygnathus had a wing span of about 3 feet and its large, curved fangs suggests that it dined primarily on fish. Like all pterosaurs, Dorygnathus was a flying reptile, not a dinosaur (the flying descendents of the dinosaurs live on today as birds).



Copyright Walter B. Myers. All rights reserved.

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