In the second section of the Fossil Gallery are life sized sculptures of dinosaurs face to face; it's interesting to walk among them and see the attention to detail. As you can imagine, it can be difficult to photograph them without people being in the images.
Also in this area are displays and exhibits on the aftermath of the age of dinosaurs and the rise of early mammals. This includes a mock up of a skull and small rodents crawling on it. Have a close look around the eye socket and you should see the critter.
On an upper level here in the Gallery, one can find this set of large mammals, long since extinct themselves, but which gave rise to later life forms.