Tenontosaurus (ten-ONT-oh-SAWR-us) was a large ornithopod (bird-footed) dinosaur that lived in the Aptian – Albian ages during Lower Cretaceous period about 116 – 113 million years ago, in Canada, North America. Tenontosaurus lived in prehistoric swamps and is now considered to be a very primitive iguanodont.
Tenontosaurus measured 26 feet (8 metres) in length, 10 feet (3 metres) in height (in bipedal stance) and weighed around 2 tons. It was large and heavily built and quadrupedal/bipedal but spent most of its time on 4 legs, grazing but could also rear up onto its hind legs to forage in trees. Tenontosaurus had a long, broad tail which was stiffened by a network of bony tendons. Most of the tendons on ornithopod dinosaurs are strong along their backbone and hip regions. Tenontosaurus had a beak similar to other bird-footed dinosaurs.
Tenontosaurus was a herbivore and its diet would have consisted of ferns, cycads, gingkos and primitive flowering plants. Its powerful, U-shaped beak and the angled cutting surfaces of its teeth meant it was not limited to which part of the plant it consumed. Leaves, wood and even fruit may have formed part of its diet.
|Lived:||Late Triassic, 227 – 205 million years ago|
|Weight:||11kgs / 24Ibs|
|Length||2m / 6.5ft|
Torosaurus (TOR-oh-SAWR-us) was a ‘bird-hipped’ dinosaur from the group known as the horn-faced dinosaurs or ceratopians that lived during the Late Cretaceous period, around 70 – 65 million years ago in what is now Colorado, USA, North America. The type species is T. tanneri.
Torosaurus measured 26 – 30 feet (8 – 9 metres) in length, 7 feet (2 metres) tall at the hips and weighed around 5 tons. Torosaurus possessed one of the largest skulls of any known land animal. Its enormous horned skull was 8 feet long. Torosaurus had a large, bony neck crest, a short horn on the snout, 2 long eyebrow horns and a toothless beak. The horns were possibly also used in courtship rivalry. The presence of 2 large holes in the crest led palaeontologists to believe that it was used for attracting mates and to intimidate opponents. The holes would have been covered by stretched skin creating vivid eye-spots when flushed with blood. These holes were probably filled with muscle. This would have made the massive frill lighter, but also less useful as a protection against enemies. Torosaurus was a quadrupedal dinosaur and moved around on its 4 thick, strong legs.
Torvosaurus (TOR-voh-SAWR-us) is a genus of large theropod dinosaur that lived in the mid-late Kimmeridgian stage in Colorado, North America and early Tithonian stage in Europe, during the Late Jurassic Period 153 – 148 million years ago. Torvosaurus is related to the earlier Megalosaurus but is seemingly more advanced.
Torvosaurus measured around 40 feet (12 metres) in length, 8 feet (2.5 metres) in height and weighed around 3 tons. It was one of the largest carnivores of its time. Torvosaurus was a bipedal dinosaur and walked on its 2 long powerful hind legs. It had strong but very short fore limbs that had large thumb claws. The head of Torvosaurus was large and elongated and was equipped with large powerful jaws containing many very sharp teeth. The tail of Torvosaurus was long, heavy and pointed and probably helped it to counterbalance. Torvosaurus was similar in appearance to Tyrannosaur Rex but had a much larger body.
Torvosaurus was a fierce carnivorous dinosaur and a predator of large herbivorous dinosaurs such as Stegosaurus and sauropods, particularly the juveniles.
Triceratops was a large and very powerful dinosaur. Triceratops walked on four very strong legs to support one of the largest heads found on any land-dwelling Dinosaur.
Triceratops had a very short tail, which wasn’t uncommon on large dinosaurs who walked on all four legs as they didn’t require the balance stabilisation.
Whilst most Dinosaurs would have been camouflaged to blend in with their surroundings, it is thought because Triceratops was so well armed and was such a large animal it didn’t need to be.
Triceratops was a Cerapod and it lived around 65-70 million years ago in the Late Cretaceous period, in what today would be classed as North America. As Triceratops was a herbivore it would have lived in an area with lush vegetation in plentiful supply to keep itself fit and healthy.
Palaeontologists have discovered fossilised footprints in suggesting that Triceratops lived in herds, perhaps even gathering into a tight group. The old saying goes there’s “safety in numbers”, and scientists believe that was indeed the case for Triceratops.
When a predator such as a Tyrannosaurus Rex may have threatened their young. The Triceratops group would surround the babies or the weak member of the herd, forcing them into the middle of a circle, making an almost impenetrable fortress of spikes.
The Tyrannosaurus rex is probably the most famous dinosaur of them all, not only because it was portrayed in the Hollywood film Jurassic Park. Tyrannosaurus rex was the biggest meat-eating Dinosaur that ever roamed the face of the Earth. We are fascinated by this dinosaur, and we are constantly learning about the T Rex, with improved technology.
The name Tyrannosaurus originates from Greek words and means “King of the tyrant lizards”. When broken down it means “Tyrant” and “Lizard”, the Rex in Latin means “King”. Its often referred to as “T Rex” for short.
The Tyrannosaurus Rex had a massive five foot long skull and a four foot long jaw. It found its prey often by using its immensely powerful sense of smell and could detect its prey across great distances.
Research has concluded that the T Rex had the most advanced out of 21 dinosaurs that were compared. There was little that could escape this vicious dinosaur.
Tyrannosaurus Rex lived for approximately 28 years and like most human teenagers, went through a growth spurt during this period of time in its life. T Rex grew incredibly quickly and went through hundreds of pounds of meat and carcasses at a time. Fossils of Tyrannosaurus dung have shown it contained bones of its prey which evidenced what was known already about the sheer power of their bone crushing capabilities.
The T rex was one of the most vicious predators the earth has ever seen but even they were no match for the asteroid or comet that crashed into earth and killed off three quarters of all life. This event wiped out the Tyrannosaurus along with other dinosaurs and brought a sudden end to the Cretaceous period.
Last Updated on 06/07/2021 by admin