The Tyrannosaur Family Tree

Well, I was kinda bored and decided to post something. Since I "specialize" in large theropods, primarily the tyrannosaurs, I decided to write about the tyrannosaur family tree. We all know that the tyrannosaurs were a group of very successful predators that included some of the biggest land predators of all time like Tyrannosaurus and Tarbosaurus. But there are dozens of other species that deserve attention too. The Proceratosaurs- This group included the earliest tyrannosaurs ever. They ranged from the 10 ft Proceratosaurus [img]http://www.nhm.ac.uk/resources/nature-online/life/dinosaurs/dinosaur-directory/images/%5Creconstruction/small/Proceratosaurus.jpg[/img] To the 30 ft Sinotyrannus [img]http://fc07.deviantart.net/fs70/i/2012/090/3/3/sinotyrannus_kazuoensis_by_teratophoneus-d4uido7.jpg[/img] These early tyrannosaurs first appeared during the mid-late Jurassic and in some cases were already the top predators. The Basal Tyrannosaurs- These guys were a little closer to the standard tyrannosaurs. Some notable species are... Eotyrannus- 6-13 ft long [img]http://www.nhm.ac.uk/resources/nature-online/life/dinosaurs/dinosaur-directory/images/%5Creconstruction/small/Eotyrannus.jpg[/img] Guanlong- 10-13 ft long [img]http://upload.wikimedia.org/wikipedia/commons/7/74/Guanlong_wucaii_head.jpg[/img] Dilong- 6-10 ft long [img]http://images4.fanpop.com/image/photos/22600000/Dilong-dinosaurs-22606077-400-288.jpg[/img] Yutyrannus- 26-30 ft long [img]http://planeetanihmeet.files.wordpress.com/2012/04/yutyrannus-vc3a4ri.jpg[/img] These tyrannosaurs first appeared during the mid-late Jurassic as well. However, they tended to be slightly more advanced than their proceratosaur counterparts. The Tyrannosaurs- The tyrannosaurs themselves were among the most advanced large theropods ever. They were also some of the largest. Gorgosaurus and Albertosaurus represent the average size of about 25-30 ft long. A few smaller ones did exist like Alectrosaurus and Nanotyrannus, both of these species being in the range of 16 ft. Slightly larger species like Daspletosaurus, which was about 30-35 ft long were also present. Then there were the 3 largest: Z-Tyrannus, Tarbosaurus, and Tyrannosaurus. All had a minimum adult size of at least 35-40 ft, often times getting bigger than that. [img]http://images2.wikia.nocookie.net/__cb20130608091340/primeval/images/7/79/Dinosaurs_albertosaurus.jpg[/img] Albertosaurus [img]http://images3.wikia.nocookie.net/__cb20111210105251/cooldinofacts/images/d/dd/Alectrosaurus1.png[/img] Alectrosaurus [img]http://ichef.bbci.co.uk/naturelibrary/images/ic/credit/640x395/d/da/daspletosaurus/daspletosaurus_1.jpg[/img] Daspletosaurus [img]http://images.wikia.com/dinosaurs/images/5/58/Tyrannosaurus_3D_Model.jpg[/img] Tyrannosaurus As you can see, while the later tyrannosaurs are the most advanced and most famous, there are some interesting tyrannosaurs that had lived long before the T-rex took it's first bite.