The central design shows all members of the Tyrannosaur family, in scale to each
other. They are arranged chronologically, left to right, by the time they first
appear in the fossil record. The insets cover many important topics. The two at
the top explain the distinctive anatomical characteristics and show the important
ancestors. The captions cite species, pronunciation, size, when lived where fossils
have been found and important milestones in evolutionary development. Those at
the bottom cover new discoveries, such as the recently unearthed feathered tyrannosaurs
and the results of the amazing growth studies recently announced by the Field
Museum. Behavior discusses family relationship and the controversial question
as the T. rex being a hunter or a scavenger. The last one lists all North American
museums where T. rex skeletons are on display.