The flowering of the Mesozoic

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■ Introduce large-scale patterns of dinosaur evolution

■ Develop a deeper understanding of climate in the Mesozoic Era

■ Introduce a few important Mesozoic plants

■ Introduce dinosaur-plant co-evolution

Figure 13.1. The great historical pageant of dinosaurs through time. The paleoenvironments of each time interval - and the dinosaurs that populated them - all have different qualities that characterized each successive ecosystem.

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Allosaurus

159 Ma Ceratosaurus

Allosaurus

159 Ma Ceratosaurus

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