Earth history; Triassic
The warm, dry climate of the Permian continued into the Triassic, when the super-continent Pangaea was at its largest. Life in the beginning of the period was dominated by middle-sized mammal-like reptiles, but in the last 10-15 million years, the dinosaurs took over. They walked upright and had an explosive development into both herbivorous and carnivorous forms. The mammals arose at the same time as the dinosaurs, but they were only small shrew-like animals. The flora consisted of conifers, ferns and cycades. The first vertebrates conquered the air - the pterosaurs. The first crocodiles, frogs and turtles are also known from this period. Ceratites (cephalopods) and ichthyosaurs (marine reptiles) lived in the warm oceans.
Publisert 18. mai 2011 16:00