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 70 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 - Masiakasaurus in a cedar swamp 70 million years ago in what is today Madagascar; ceratosaurs; Noasauridae - Natural History Illustration Geologic Time Scale

 Era: Mesozoic
  Period: Cretaceous
   Epoch: Late
    Age: Maastrichtian



Small predatory theropod dinosaurs of the genus Masiakasaurus explore a forest of cypress, ferns and horsetails 70 million years ago in what is today Madagascar.

Masiakasaurus was a small-bodied carnivore that grew to about six feet long and weighed up to 200 pounds. Its front teeth were projected forward, giving it a buck toothed appearance, an adaptation that is believed to have aided it in catching fish and other small prey. 




Copyright Walter B. Myers. All rights reserved.

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