dicraeosaurus attacked by yangchuanosaurus

africa animal animals apex behemoth biped bipedal carnivore carnivorous creature dicraeosaurus dinosaur environment era evolution extinct extinction germany hansemanni herbivore herbivorous history hunting illustration image jurassic juravenator large lizard natural nature organism paleoart paleontology picture powerful predator prehistoric primeval primitive quadruped raptor reptile sauropod species starki tanzania teeth themes theropod titan titanosaur vertebrate wilderness wildlife world yangchuanosaurus