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Everyone these days knows about the "island effect" where certain animals evolve to a diminutive size because they live on islands. You know this because of the Flores hominid. Now, it has been shown to have operated in a dinosaur. Thecodontosaurus Thecodontosaurus is also known as the Bristol…
Before I begin, let me say: yay Raeticodactylus. Would say more but haven't had time (plus I've had no internet access for the last few days). Last year Dave Martill and I published part 1 of our review of the British dinosaur fauna (Naish & Martill 2007). While several published lists provide…
George and Charles H. Sternberg's "Trachodon" (=Edmontosaurus) mummy, discovered in Wyoming in 1908. Image from Osborn, H.F. (1912) "Integument of the iguanodont dinosaur Trachodon", Memoirs of the AMNH ; new ser., v. 1, pt. 1-2. Dinosaur "mummies," specimens that have undergone unusual…
Yesterday the most remarkable thing happened. No, I have not been handed new DNA work on the Dufftown rabbit-headed cat, nor has the rest of Yaverlandia been found. An articulated azhdarchid has not been discovered on a Cretaceous savannah ashfield, nor have the islands of the SW Pacific yielded…

I haven't had a chance to see the paper in question, but _Thecodontosaurus_ is more basal than _Plateosaurus_ and other basal and more closely related sauropodomorphs were also quite small. It seems easier to explain _Thecodontosaurus_'s size as a case of plesiomorphy rather than insular dwarfism.