There were over 12 different Tyrannosaurs, each specialized for a specific time period and environment. These dinosaurs were continuously evolving and becoming more specialized. Some grew in size, while others shrunk in size. tyrannosaur, any of a group of predatory dinosaurs that lived from the late Jurassic Period (about 150 million years ago) to the latest Cretaceous Period (about 65 million years ago), at which time they reached their greatest dominance. Most tyrannosaurs were large predators, with very large, high skulls approaching or well exceeding a full metre (more than three feet) in length. The best-known and largest member of the group is Tyrannosaurus rex, or T. rex. The “king of the tyrant lizards,” as its Latin name is usually translated, walked on powerfully developed hind limbs. If the animal had stood upright, it would have been more than 6.5 metres (21 feet) tall, but the usual posture was horizontal, with the body carried parallel to the ground and the tail held off the ground as a counterbalance. In this position a large adult, weighing 4,000 to 7,000 kg (about 9,000 to 15,000 pounds), could measure 14 metres long.

For Copyright Issues, Kindly email me: hamarbabiangdiengdoh@gmail.com

свернуть