Bistahieversor and Parasaurolophus dinosaurs during the Kirtland Formation.

Bistahieversor and Parasaurolophus dinosaurs during the Kirtland Formation. The Kirtland Formation was laid down about 80-75 million years ago in New Mexico. This scene might have happened around 77 million years ago. In the foreground are Pentaceratops. A medium sized ceratopsian about 18 feet long and 2.5 tons. Midway back and to the left are Parasaurolophus tubicen. A fair sized Hadrosaur they might be as big as 36 feet and 5 tons. A full sized adult would prove a challenge for the local predator. Bistahieversor was a tyrannosaurid and estimated 30-33 feet and 3 tons.

AL AIRE LIBRE • ANIMAL • ANIMALES EN LA NATURALEZA • ARBOL • BESTIA • BOSQUE • CIENCIA • CIENCIAS NATURALES • CONCEPTO • CREATURE • CRETÁCEO • CRIATURA • CUADRUPEDO • DÍA • DINOSAURIO • DINOSAURIOS • EPOCA PREHISTORICA • ERA MESOZOICA • ESPECIES • EVOLUCION • EXISTENCIA • EXTINGUIDO • FAUNA • FOLLAJE • GRUPO MEDIANO DE ANIMALES • HABITAT • HADROSÁURIDO • HADROSAURIO • HERBIVORO • HISTORIA NATURAL • HORIZONTAL • ILUSTRACION • IMAGEN EN COLOR • IMAGEN GENERADA DIGITALMENTE • JURÁSICO • MAMIFERO • NATURALEZA • NEW MEXICO • NUEVO MEXICO • OBRA DE ARTE • ORNITHISCHIA • ORNITÓPODO • OUTSIDE • PAISAJE • PAISAJES • PALEOBIOLOGIA • PALEONTOLOGIA • PASADO, EL • PASTO • PRIMITIVA • PRIMITIVO • REPTIL • SAURISCHIA • SIN GENTE • TEMAS DE ANIMALES • TEROPODO • VARIACIÓN • VEGETACIÓN • VERTEBRADO • VIDA SALVAJE • ZOOLOGIA