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 Oklahoma, USA
 110 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 - A 50 ton plant-eating Sauroposeidon strolls by a pair of carnivorous Acrocanthosaurus - Natural History Illustration Geologic Time Scale

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


Sauroposeidon & Acrocanthosaurus

A 50 ton plant-eating sauropod dinosaur of the genus Sauroposeidon strolls through the shallow waters of a river delta while a pair of carnivorous dromaeosaurid dinosaurs of the genus Acrocanthosaurus think better of trying to bring down the massive sauropod. The location is the Western Interior Seaway 110 million years ago during the Early Cretaceous Period in what is today southeastern Oklahoma.

Acrocanthosaurus was a large bipedal predator, one of the largest of its day. It is known for the high spines that ran along its back.



Copyright Walter B. Myers. All rights reserved.

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