Sunday 26 July 2015
Wednesday 22 July 2015
Thursday 16 July 2015
ICHTHYOSAUR EVOLUTION
During the early Triassic period, ichthyosaurs evolved from a group of unidentified land reptiles that returned to the sea.
They were particularly abundant in the later Triassic and early Jurassic periods before being replaced as a premier aquatic predator by another marine reptilian group, the Plesiosauria, in the later Jurassic and Cretaceous periods.
They were particularly abundant in the later Triassic and early Jurassic periods before being replaced as a premier aquatic predator by another marine reptilian group, the Plesiosauria, in the later Jurassic and Cretaceous periods.
Tuesday 14 July 2015
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