Megalosaurus (MEG-ah-low-sore-us) is a genus of large theropod dinosaur. It lived in the Bathonian to Kimmeridgian stage during the Middle Jurassic Period of Europe, Southern England, France and Portugal around 166 million years ago.
Megalosaurus measured 30 feet (9 metres) in length, 10 feet (3 metres) in height and weighed around 1 ton. It had a very large head, powerful jaws and large sharp serrated teeth. Megalosaurus was a bipedal dinosaur, with a large bulky body and walked on its muscular, strong hind legs using its large, heavy, stiff tail for counter-balance. Megalosaurus was a relatively fast runner.
The structure of the cervical vertebrae suggests that its neck would have been very flexible. Like all theropods, it had 3 forward facing toes and a single reversed one. Although they had not reached the minuscule size of later theropods like Tyrannosaurus, the fore limbs of Megalosaurus were small and probably had 3 or 4 clawed digits on each hand.
Melanorosaurus (me-lan-or-oh-sore-us) is a genus of sauropod dinosaur that lived in the Carnian or Norian stages, during the Late Triassic Period, 227 to 221 million years ago, in Cape Province, South Africa. Melanorosaurus is one of the first Prosauropods to be discovered. It was once considered to have been a Prosauropod, but is today widely considered to be one of the earliest Sauropod dinosaurs.
Melanorosaurus measured around 26 feet (8 metres) in length and weighed around 1 ton. It had a large bulky body and sturdy, thick-set limbs that supported its huge size. It was a quadrupedal dinosaur and moved around on all 4 limbs. Like most sauropod vertebrae, its spinal bones had hollows that helped reduce weight. Melanorosaurus had a triangular shaped skull which measured 250 millimetres, small eyes and a snout that pointed outwards. It would have had many peg-like teeth to chew plant material with.
Melanorosaurus was a herbivore. This dinosaur probably used its great size and long neck to eat high growing plants and vegetation. It would have eaten a huge amount of plant material to sustain its massive size.
Microraptor (MY-crow-rap-tore) was a genus of small, dromaeosaurid dinosaur that lived in the Aptian stage during the Early Cretaceous period, 130 – 125 million years ago, in the woodlands of China, Asia. Microraptor was among the smallest known dinosaurs. Apart from its extremely small size, Microraptor was among the first non-avian dinosaurs discovered with the impressions of feathers and wings.
Microraptor was a small dinosaur and measured 2.5 feet (77 centimetres) in length and weighed 2 – 3 pounds. Like Archaeopteryx, it demonstrates the close evolutionary relationship between birds and dinosaurs, as it had long primitive, pennaceous (not downy) feathers on its limbs and body and had a diamond shaped fan on the end of its tail, possibly for added stability during flight. Microraptor had 2 sets of wings, on both its fore limbs and hind limbs. In addition to the long pennaceous feathers on arms and hands that measured between 10 and 20 centimetres long, legs and feet 11 – 15 centimetres long and towards the tail end, Microraptor was covered in shorter downy (plumulaceous) feathers measuring between 2 and 6 centimetres long.
Monolophosaurus (MON-oh-LOAF-oh-SORE-us) was a carnosaur that lived in the Bathonian – Callovian stages, during the Late Jurassic, about 180 – 159 million years ago, in the Shishugou Formation, China. It was named for the single crest on top of its skull. The area that Monolophosaurus was found showed signs of water, so it is possible that this dinosaur lived on the shore of lakes or ocean. Monolophosaurus may be related to the allosaurids.
Monolophosaurus measured around 16 feet (5 metres) in length, 6 feet in height and weighed 700 kilograms (1,500 pounds). It was a bipedal dinosaur and walked on its 2 hind legs. It had powerful, long hind legs and short fore limbs that were all equipped with sharp claws. Its long, stiff pointed tail was heavy and probably used as a counter-balance. Monolophosaurus had a large head that featured a single prominent crest on the top. The crest was used as a dominant characteristic. The bigger the crest, the easier it would have been to mate with females.
Mussaurus (moos-SORE-us) was a genus of prosauropod dinosaur that lived in the Norian Age, during the Late Triassic Period, around 221 – 210 million years ago, in Santa Cruz, Southern Argentina which was desert-like at that time. Mussaurus is a very early dinosaur. It gets its name from the small size of the skeletons discovered so far. Mussaurus lived at the same time as Eoraptor, Riojasaurus, Coloradisaurus, Frenguellisaurus, Herrerasaurus, Ischisaurus, Pisanosaurus and Staurikosaurus.
Mussaurus measured 20 feet (6 metres) in length, 10 feet (3 metres) in height and weighed 1,000 kilograms (2,200 pounds). It was a bipedal dinosaur and walked on 2 strong hind legs although it could also walk on all fours. Mussaurus had a large body, a long neck and a long, pointed tail that would have been used as a counter-balance. Its snout was long and its head was quite small but it had large eye sockets. Its hind legs were slightly longer than the fore legs. Its legs and hands were equipped with 5 clawed fingers with a large thumb claw. Mussaurus had leaf-shaped or spoon-like teeth.
NobuTamura email:email@example.com palaeocritti, CC BY-SA 3.0, via Wikimedia Commons
|Lived:||Early Cretaceous, 107 – 103 million years ago|
|Length||8m / 26ft|
Muttaburrasaurus (Mutt-ah-burr-ah-sore-uss) was a ornithopod dinosaur that lived in the Albion stage, during the Middle Cretaceous Period, 100 – 98 million years ago, of what is now northeastern Australia. Muttaburrasaurus was related to Camptosaurus and Iguanodon. Other than its curved beak-like mouth, Muttaburrasaurus was a typical iguanodontid.
Muttaburrasaurus measured 26 feet (8 metres) in length and weighed around 3 tons. It was a bipedal dinosaur and walked around on its 2 powerful hind legs, however, it was also capable of quadrupedal stance, grazing on all 4 limbs. The 3 middle digits of the fore limb were joined together into a hoof-like pad for walking on. It also had a spiked thumb, which was about 15 centimetres long. Muttaburrasaurus had very powerful jaws equipped with shearing teeth. It also had an enlarged, hollow, upward-bulging muzzle on its long snout, between its eyes, that might have been used to produce sounds or for display purposes or to improve its sense of smell. Muttaburrasaurus had a long neck and head and a long, stiff, pointed tail which could have been used as a counter-balance.
Last Updated on 09/07/2021 by admin