Extinct Collection (page 19)

Polacanthus skin impression
Knobbly skin impression from the armoured dinosaur, Polacanthus. This dinosaur lived around 125 million years ago during the Lower Cretaceous. Its fossils have been found in the Isle of Wight, UK

Hypsilophodon leg
Cross section model to show how Hypsilophodons large, strong leg-moving muscles were concentrated on the thigh and hip to allow the long lower leg to swing fast through a long stride

Heterodontosaurus skull
The skull of a Heterodontosaurus dinosaur that lived around 105 million years ago. It was discovered in South Africa and measures 10 cms in length. The total body lengh would have been 90 cms

Class Reptilia - Dinosauria, or Gigantic Lizards: Iguanadon
Class Reptilia - Dinosauria, or Gigantic Lizards:Iguanadon

Mr William Walker
Holding a Baryonyx claw. Baryonyx was found in 1983 in a clay pit in Surrey, England, by the British amateur fossil hunter William Walker

Iguanodon atherfieldensis skull
The skull belonging to Iguanodon atherfieldensis measuring 450mm long. The fossil was discovered along with a complete skeleton in Brook Bay, Isle of Wight and collected by R.W. Hardy in 1917

Tsintaosaurus
This dinosaur duck-billed and herbivorous. It lived around 70 million years ago during the upper Cretaceous period. It grew up to 8 metres in length and about 4 metres wide

Diplodocus carnegiei skull
The skull belonging to the replica skeleton of Diplodocus carnegiei on display at the Natural History Museum, London. The slender teeth would have raked leaves from branches

Dilophosaurus
The Dilophosaurus, meaning double crested lizard was a fast predatory dinosaur which lived about 200 to 189 million years ago during the Lower Jurassic. Fossils have been found in Arizona, USA

Plateosaurus
A fossil reconstruction of the hand and lower leg bones belonging to the dinosaur, Plateosaurus. These dinosaurs were wer herbivorous and may have used these sharp claws for defence

Triceratops skull
Side view of a Triceratops skull on display at the Natural History Museum, London. This specimen has moved from this location and can now be seen in the Dinosaur Gallery

Lower Jurassic dinosaurs discovered in England
An illustration showing scene in Lower Jurassic (175 - 200 mya) South England, featuring a Megalosaurus (above) catching sight of a possible victim, the primitive ornithischian Scelidosaurus dinosaur

Edmontosaurus laboratory work
Palaeontologists working on the dinosaur, Edmontosaurus. Applying a resin solution hardener to consolidate and protect freshly prepared fossil bones; here the ankle

Huayangosaurus skull
A fossil skull that once belonged to Huayangosaurus, a dinosaur from the infraorder Stegosauria. This specimen was discovered in Sichuan, China in 1982

Sauropod excavation, 1988
Team cleaning exposed elements of the fore and hind limbs of a Sauropod dinosaur in Niger, 1988

Working on Gallimimus
John Holmes at the Natural History Museum, London works on the reconstruction of the dinosaur Gallimimus

Protoceratops eggs
A nest containing eggs from Protoceratops discovered in the Gobi Desert, Mongolia. They date back to the Upper Cretacous period. Protoceratops, a herbivore, lived 85 to 80 million years ago

Psittacosaurus

Scelidosaurus
A model of the dinosaur Scelidosaurus. A four metre long armoured skinned dinosaur which lived during the Lower Jurassic about 208 - 194 million years ago, first discribed by Richard Owen in 1868

Diplodocus foot
Detail of the replica diplodocus skeleton on display at the Natural History Museum. The three inner toes of the back foot had sharp claws which may have acted as an anti-slip device

Apatosaurus, previously known as Brontosaurus
A solid pillar-like femur, or thigh bone that once supported the 20 to 30 tonne dinosaur, Apatosaurus. This specimen is 1.5 metres long

Brachiosaur back vertebra
A specimen of a back vertebra that once belonged to a dinosaur from the Brachiosauridae family. This family of dinosaurs lived during the Jurassic and Cretaceous period

Protoceratops eggshell
Fossilized Protoceratops eggshell that was discovered in the Gobi Desert, Mongolia. They date back to around 100 million years ago to the Upper Cretaceous period. Protoceratops was a herbivore

Edmontonia
The collar plates that once belonged to Edmontonia, the armoured herbivorous dinosaur that lived 76 to 78 million years ago during the Upper Cretaceous. Fossils have been found in Alberta, Canada

Baryonyx excavations
Team from the Natural History Museum, London at work on the excavation of the dinosaur Baryonyx walkeri at the Ockley brick pit in Surrey, England in June 1983

Megalosaurus thigh bone
A human thigh-bone figured as item 4 on TAB VIII by Dr. R Plot in The Natural History of Oxfordshire in 1677 is actually a dinosaur thigh-bone, probably Megalosaurus

Gasosaurus was a flesh-eating bipedal dinosaur which lived during the middle Jurassic, about 160 mya. It was up to 4 metres long and 2 metres high with short arms

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