Collecta prehistory: tooth and claw Allosaurus Allosaurus is a genus of large carnivorous theropod dinosaurs, belonging to the group of the Carnosauria, that lived during the late Jurassic, 150 million years ago, in the area of ​​present-day North America and Portugal. Allosaurus was discovered in the United States in the mid-nineteenth century. Specifications: Gender: junior, unisex Material: plastic Dimensions: 4 x 8 x 11.5 cm Age: from 4 years