Mesozoic Earth ] Back | Next >

 80 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 juvenile Antarctosaurus stalked by an adult Abelisaurus in a dark forest 80 million years ago in what is today Argentina; Abelisauridae; Titanosauria; Antarctosauridae - Natural History Illustration Geologic Time Scale

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


Antarctosaurus stalked by Abelisaurus

A 30-foot-long, 10 ton juvenile titanosaurian sauropod dinosaur of the genus Antarctosaurus is approached from behind by a 25-foot-long, two ton adult abelisaurid theropod dinosaur of the genus Abelisaurus deep in a forest in what is today Argentina. Likely a fierce predator, Abelisaurus resembled the larger Tyrannosaurus Rex that was to roam North America 10 million years later. Antarctosaurus was an herbivore that may have grown to 60 feet long and weighed up to 100 tons. Antarctosaurus had a squarish, blunt head with peg-shaped teeth.




Copyright Walter B. Myers. All rights reserved.

Terms of use

Home | What's New | The Graphics | Information | Site Map |  ]