Many Worlds of April. Saga of the Jurassic. North American Mountain Building

On the ocean side of Pangea, the plates continued to collide. One plate was being forced under another. Folds, uplifts and volcano eruptions occurred along the moving plates. The mountains that stretch from British Columbia, through North America and into South America were beginning to form during this time.
Warm Climate Fosters New Species

The climate was warm and stable. Many types of animals and plants developed. The numbers of different species increased greatly during the Jurassic Period.