A is for allosaurus B is for brachiosaurus C is for carnotaurus . . . Take a trip back in time to the Mesozoic Era when dinosaurs walked the earth! With G for giganotosaurus, P for pachycephalosaurus, and X for xenoceratops, the ABCs have never been so T-riffic! Every little dino lover will have a roaring good time learning dinosaur names all the way down to zalmoxes.