A Parasaurolophus dinosaur during the late Cretaceous period.

Parasaurolophus is a herbivorous dinosaur belonging to the group known as hadrosaurids. It lived during the late Cretaceous period and was both a biped and quadruped. It is now believed that the crest on its head was used as a sonic weapon, and that a group of these dinosaurs producing sound all at the same time could literally knock a predator off its feet.

AL AIRE LIBRE • ANIMAL • ANIMAL, UN • ARBOL • AVE CARROÑERA • BESTIA • BIPEDO • CIENCIAS NATURALES • CONCEPTO • CREATURE • CRESTA • CRETÁCEO • CRIATURA • DÍA • DINOSAURIO • DINOSAURIOS • EN TRES DIMENSIONES • EPOCA PREHISTORICA • ERA MESOZOICA • ESPECIES • EVOLUCION • EXISTENCIA • EXTINGUIDO • GEOLOGIA • HADROSÁURIDO • HERBIVORO • HISTORIA NATURAL • HORIZONTAL • ILUSTRACION • IMAGEN EN COLOR • IMAGEN GENERADA DIGITALMENTE • IMAGINACION • MONSTER • MONSTRUO • MONTANA • MONTAÑA • MONTAÑOSO • NATURALEZA • OBRA DE ARTE • ORIGEN • ORNITHISCHIA • ORNITÓPODO • OUTSIDE • PAISAJE • PAISAJES • PAJARO DE PRESA • PAJARO • PALEONTOLOGIA • PASADO • PASTO • PLANTA • PRIMITIVA • PRIMITIVO • PTERODACTILO • PTEROSAURIO • REPTIL • SIN GENTE • TEMAS DE ANIMALES • VERTEBRADO • VIDA SALVAJE • ZOOLOGIA