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M.

Magyatosaurus

Magyarosaurus

Conty, CC BY 3.0, via Wikimedia Commons

Type:Sauropod
Lived:Late Cretaceous, 71 – 65 million years ago
Weight:1,100kg
Length6m / 20ft
Diet:Herbivorous
Dinosaur Info coming! soon

Maiasaura

Maiasaura

Nobu Tamura (http://spinops.blogspot.com), CC BY 3.0, via Wikimedia Commons

Type:Ornithopod
Lived:Late Cretaceous, 76.7 million years ago
Weight:3,000 – 10,000kg
Length9m / 30ft
Diet:Herbivorous
Dinosaur Info coming! soon

Majungasaurus

Majungasaurus

Nobu Tamura (http://spinops.blogspot.com), CC BY-SA 3.0, via Wikimedia Commons

Type:Large theropod
Lived:Late Cretaceous, 70 – 66 million years ago
Weight:3,000 – 10,000kg
Length6 – 7m / 19.7 – 23ft
Diet:Carnivorous
Dinosaur Info coming! soon

Malawisaurus

Malawisaurus_skeleton

Greg Heartsfield from Fort Worth, USA, CC BY 2.0, via Wikimedia Commons

Type:Sauropod
Lived:Early Cretaceous, 121 – 112 million years ago
Weight:3,100 – 10,000kg
Length11 – 16m / 36 – 52ft
Diet:Herbivorous
Dinosaur Info coming! soon

Mamenchisaurus

Mamenchisaurus

ДиБгд, CC BY-SA 3.0, via Wikimedia Commons

Type:Sauropod
Lived:Late Jurassic, 155 -145 million years ago
Weight:3,100 – 10,000kg
Length15 – 26m / 49 – 85ft
Diet:Herbivorous
Dinosaur Info coming! soon

Mapusaurus

Mapusaurus

Nobu Tamura (http://spinops.blogspot.com), CC BY-SA 3.0, via Wikimedia Commons

Type:Large theropod
Lived:Late Cretaceous, 99 – 94 million years ago
Weight:3,000 – 5,000kg
Length11.5 – 12.6m / 38 – 41ft
Diet:Carnivorous
Dinosaur Info coming! soon

Marshosaurus

Marshosaurus

Dennonychus, CC BY-SA 3.0, via Wikimedia Commons

Type:Theropod
Lived:Late Jurassic, 154 -142 million years ago
Weight:200kg / 440Ibs
Length4.5m / 14.7ft
Diet:Herbivorous
Dinosaur Info coming! soon

Masiakasaurus

Masiakasaurus

Nobu Tamura (http://spinops.blogspot.com), CC BY-SA 3.0, via Wikimedia Commons

Type:Small theropod
Lived:Late Cretaceous, 70 million years ago
Weight:20kg / 44Ibs
Length2m / 6.7ft
Diet:Carnivorous
Dinosaur Info coming! soon

Massospondylus

Massospondylus

Nobu Tamura (http://spinops.blogspot.com), CC BY 3.0, via Wikimedia Commons

Type:Sauropod
Lived:Early Jurassic, 200 – 183 million years ago
Weight:1,000kg / 2,200Ibs
Length4m / 13ft
Diet:Omnivorous
Dinosaur Info coming! soon

Maxakalisaurus

Maxakalisaurus

GeoPotinga, CC BY-SA 3.0, via Wikimedia Commons

Type:Sauropod
Lived:Late Cretaceous, 80 million years ago
Weight:9,000kgs
Length13 – 20m / 43 – 66ft
Diet:Herbivorous
Dinosaur Info coming! soon

Megalosaurus

Megalosaurus

LadyofHats, Public domain, via Wikimedia Commons

Type:Large theropod
Lived:Mid Jurassic, 166 million years ago
Weight:700kgs / 1,500Ibs
Length9m / 30ft
Diet:Carnivorous

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

Melanorosaurus

I, Steveoc 86, CC BY-SA 3.0, via Wikimedia Commons

Type:Sauropod
Lived:Late Triassic, 227 – 221 million years ago
Weight:1,300kgs
Length8m / 26ft
Diet:Omnivorous

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.

Metriacanthosaurus

Metriacanthosaurus

FunkMonk (Michael B. H.), CC BY-SA 3.0, via Wikimedia Commons

Type:Large theropod
Lived:Late Jurassic, 160 million years ago
Weight:1,000kgs
Length8m / 26ft
Diet:Carnivorous
Dinosaur Info coming! soon

Microceratus

Dinosaur Info coming! soon
Type:Ceratopsian
Lived:Late Cretaceous, 66 million years ago
Weight:3 – 10kgs
Length60cm / 1.96ft
Diet:Herbivorous
Dinosaur Info coming! soon

Micropachycephalosaurus

Dinosaur Info coming! soon
Type:Ceratopsian
Lived:Late Cretaceous, 84 – 71 million years ago
Weight:3 – 10kgs
Length2.3 – 4.5m / 7.5 – 15ft
Diet:Herbivorous
Dinosaur Info coming! soon

Microraptor

Microraptor
Type:Small theropod
Lived:Early Cretaceous, 120 million years ago
Weight:1kgs / 2.2Ibs
Length77cm / 2.53ft
Diet:Carnivorous

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.

Minmi

Minmi

LadyofHats, Public domain, via Wikimedia Commons

Type:Armoured
Lived:Early Cretaceous, 133 – 120 million years ago
Weight:300kgs / 660Ibs
Length3m / 9.8ft
Diet:Herbivorous
Dinosaur Info coming! soon

Monolophosaurus

Monolophosaurus

Jordan Mallon, CC BY-SA 2.5, via Wikimedia Commons

Type:Armoured
Lived:Mid Jurassic, 180 – 159 million years ago
Weight:475 – 710kgs / 1,047 – 1,565Ibs
Length5 – 7.5m / 16.4 – 24.6ft
Diet:Carnivorous

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.

Mononykus

Mononykus_Restoration

PaleoNeolitic, CC BY 4.0, via Wikimedia Commons

Type:Small theropod
Lived:Late Cretaceous, 70 million years ago
Weight:3.5kgs / 7.7Ibs
Length1 – 1.2m / 3.3 – 3.9ft
Diet:Carnivorous
Dinosaur Info coming! soon

Mussaurus

Mussaurus

Sauropodomorph at English Wikipedia, CC BY-SA 4.0, via Wikimedia Commons

Type:Sauropod
Lived:Late Triassic, 215 million years ago
Weight:1,000kgs / 2,200Ibs
Length6m / 20ft
Diet:Herbivorous

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.

Muttaburrasaurus

Muttaburrasaurus

NobuTamura email:nobu.tamura@yahoo.com palaeocritti, CC BY-SA 3.0, via Wikimedia Commons

Type:Ornithopod
Lived:Early Cretaceous, 107 – 103 million years ago
Weight:2,800kgs
Length8m / 26ft
Diet:Herbivorous

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.

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Last Updated on 09/07/2021 by admin