http://www.ckfu.org/vb/attachment.ph...1&d=1389108271

This window on the mid-Jurassic would have to contain more than just dinosaurs.
We need fossils of all the other animals that lived with the dinosaurs.
And not just the animals.
You want to look at the plants so you can actually try and work out what was around,
what these animals might have been eating and start building up more of a, how can I say, a piece of that ecosystem.
So not only can we piece together the puzzle of dinosaur evolution in the middle Jurassic,
but we can look at all the environmental changes that might have happened as well.