SEA DRAGONS

Draghi marini

  In the seas of the Triassic lived five major groups of marine reptiles: Pachypleurosauria, Placodontia, Nothosauria, Plesiosauria and Ichthyosauria. Each group is adapted to aquatic life in a very different way and altogether represent an important adaptive radiation to aquatic predators whose origins are probably independent.     Pachypleurosaurs…

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DO NOT CALL THEM DINOSAURS

Non chiamateli dinosauri

   Pterosaurs and dinosaurs belong to the group of Ornithodira, but are classified under two different superorders, the Pterosauromorpha and the Dinosauromorpha. The genetic distance between them is therefore the same as between a bear and a flying lemur. Define pterosaurs “Flying Dinosaurs” is therefore incorrect. The word “pterosaur” means…

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