Did some modern animals live during the jurassic period?

There are some species alive today which apparently evolved in or before the Jurassic - at least, from what we can tell of their fossils, they are still the same species. The Frilled shark, horseshoe shrimp, sturgeon, and coelocanth are a few examples. read more

Some of the largest animals ever to live were dinosaurs of the Jurassic Period. Reptiles were also capable of laying amniotic eggs, which kept the developing young moist and nourished during gestation. This allowed for the first fully terrestrial animal life cycles. read more

Dinosaurs are believed to have evolved in to such huge creatures as a direct result of the explosion of plant life during the Jurassic period. read more