Hohenfelden : Ten-year old Adele Anhalt inspects the mouth of a model of a dinosaur in the exhibition 'World of Dinosaurs' in Hohenfelden near Erfurt, central Germany, Tuesday, Sept. 25, 2012. From Sept. 15 up to the Nov. 4, 2012 the exhibition shows 65 models of 56 species of dinosaurs reproduced under scientific instructions in natural size. Among them are stegosaurs, diplodocus, triceratops, archaeopteryx, tyrannosaur, and other representatives of the Triassic, Jurassic and Cretaceous periods Hohenfelden : Ten-year old Adele Anhalt inspects the mouth of a model of a dinosaur in the exhibition 'World of Dinosaurs' in Hohenfelden near Erfurt, central Germany, Tuesday, Sept. 25, 2012. From Sept. 15 up to the Nov. 4, 2012 the exhibition shows 65 models of 56 species of dinosaurs reproduced under scientific instructions in natural size. Among them are stegosaurs, diplodocus, triceratops, archaeopteryx, tyrannosaur, and other representatives of the Triassic, Jurassic and Cretaceous periods