Bipedal Collection

Archaeopteryx had the same number and arrangement of primary and secondary flight feathers as modern birds. Watercolour on paper by John Doncaster

Iguanodon
This dinosaur was a large bipedal herbivore which stood 14 feet high and 30 feet long. It lived during the Lower Cretactous around 140 to 110 million years ago

Ornithosuchus
An illustration by Neave Parker of the Ornithosuchus, a thecodont, an extinct bipedal reptile closedly related to the dinosaur. It lived around 185 million years ago

Archaeopteryx lithographica [London specimen]
Main slab of rare fossil dinobird and earliest bird found in the Upper Jurassic of Solenhofen in Germany, now on display at The Natural History Museum, London. Known also as the London Archaeopteryx

Coelophysis fossil
Coelophysis was one of the earliest known dinosaurs which lived 225 to 220 million years ago during the Upper Triassic

Homo habilis in action
An illustration by Angus McBride showing Homo habilis using tools to kill an Antelope. Homo habilis lived in East Africa between 1.6 and 2 million years ago

Allosaurus cranium
A detail of the skull of Allosaurus, the Upper Jurassic carnivorous dinosaur that lived 153 to 135 million years ago. On display at the Natural History Museum, London

Iguanodon & Megalosaurus
Iguanodon was a bipedal herbivorous dinosaur that lived 140-110 million years ago. Less is known about the Megalosaurus, but it lived a little earlier than Iguanodon as a large carnivorous dinosaur

Megalosaurus
This was a carnivorous dinosaur that lived 140 million years ago during the Middle Jurassic. It grew up to 20 feet long and fossils have been discovered in the English Midlands and in Southern England

Reconstruction of a Compsognathus longipes, small, bipedal, carnivorous theropod dinosaur of the Jurassic. Colour printed illustration by F

Compsognathus longipes, extinct small, carnivorous theropod
Compsognathus longipes, extinct species of small, bipedal, carnivorous theropod dinosaur of the Tithonian, Late Jurassic. Compsognathus longipes Wagner. (Zierschnabel)

Allosaurus. Late Jurassic Period. Three-fingered forelimbs
Allosaurus. Genus of carnivorous theropod dinosaur that lived 155 to 145 million years ago. Late Jurassic Period. Bipedal predador. Three-fingered forelimbs. Natural History Museum, Berlin. Germany

Allosaurus. Late Jurassic Period
Allosaurus. Genus of carnivorous theropod dinosaur that lived 155 to 145 million years ago. Late Jurassic Period. Bipedal predador. Reconstruction dinosaur skeleton. Natural History Museum, Berlin

Allosaurus. Late Jurassic Period. Detail of the head
Allosaurus. Genus of carnivorous theropod dinosaur that lived 155 to 145 million years ago. Late Jurassic Period. Bipedal predador. Detail of the head. Reproduction. Natural History Museum, Berlin

Allosaurus. Late Jurassic Period. Skull with a large teeth
Allosaurus. Genus of carnivorous theropod dinosaur that lived 155 to 145 million years ago. Late Jurassic Period. Bipedal predador. Skull with a large and serrated teeth. Detail

Allosaurus. Late Jurassic Period. Skull
Allosaurus. Genus of carnivorous theropod dinosaur that lived 155 to 145 million years ago. Late Jurassic Period. Bipedal predador. Skull with a large and serrated teeth

Gallimimus
An omnivorous dinosaur from Mongolia which lived during the Upper Cretaceous period, 74 to 70 million years ago It grew up to 6 metres in length making it the largest ornithomimid yet

Ceratosaurus, Coelurosaur, Camptosaurus, Stegosaurus, Brachio
A Ceratosaurus feeds on a dead Apatosaurus as do two small Coelurosaurs (Coelurus). Behind L-R are 2 Camptosaurus, Stegosaurus, Brachiosaurus and another Apatosaurus

Psittacosaurus skull
A fossil skull that belonged to the parrot-beaked like dinosaur, Psittacosaurus. It lived during the lower Cretaceous period aroun 120 - 100 million years ago

Daspletosaurus teeth
Fossil teeth from the Daspletosaurus, a large carnivorous dinosaur closely related to, but not as big as, the Tyrannosaurus

Megalosaurus tooth
A typical carnosaur tooth belonging to Megalosaurus. It is curved in shape, pointing backwards and has sharp, serrated edges for cutting meat. The Megalosaurus lived during the Middle Jurassic period

Iguanodon femur
A fossil femur, or thigh bone that once belong to the bipedal herbivorous dinosaur, Iguanodon. This specimen shows marks where muscles were once attached to the bone

Parasaurolophus skull
A fossil skull belonging to the dinosaur Parasaurolophus on display at the Natural History Museum, London. This large crested dinosaur lived around 70 million years ago during the Upper Cretaceous

The Country of the Iguanodon
Frontispiece by John Martin from The Wonders of Geology, Volume 1, 1857 by Gideon Mantell (1790-1852). Gideon Mantell was a palaeontologist who discovered Iguanodon fossils in England

Gallimimus skeleton
An omnivorous dinosaur from Mongolia which lived during the Upper Cretaceous period, 74 to 70 million years ago It grew up to 6 metres in length making it the largest ornithomimid yet

Ceratosaurus & Apatosaurus
Ceratosaurus overlooks a herd of Apatosaurus. Ceratosaurus was a large powerful predator with long curved fangs. Apatosaurus was one of the largest herbivores growing to 21 metres in length

Maiasaura with nest of eggs and hatchlings
An animated model of the dinosaur Miasaura, created by Kokoro Ltd. for the Natural History Museum, London. This dinosaur whose name meand good mother lizard lived during the Upper Cretaceous 60-85 mya

Deinonychus
A model of the Deinonychus, meaning terrible claw. It was a carnivorous dinosaur that lived during the Lower Cretaceous period, around 144 million years ago

Hypsilophodon skull
Hypsilophodons narrow mouth would have been suitable for picking out soft shoots and leaves. Narrow mouths allow animals to select food with more care. This specimen lived 125 million years ago

Hypsilophodon foot
Hypsilophodons upper foot bones were long and the lower foot thin and flexible, very like todays running birds

Compsognathus longipes, extinct small, bipedal, carnivorous theropod dinosaur from the Jurassic.. Colour printed (chromolithograph) illustration by F

Tenontosaurus attacked by Deinonychus
Detail of Deinonychus claw from a full scale animated model of a Tenontosaurus being attacked by five Deinonychus, made by Kokoro Co. Japan for The Natural History Museum

Iguanodon bones
A jumble of Iguanodon bones developed originally in 1834 by Gideon Algeronon Mantell (1790-1852). Specimen known as The Maidstone Slab. It dates back to around 140 to 110 million years

Heterodontosaurus
This dinosaur whose name means different-toothed lizard is a member was an Ornithopod. It lived during the Lower Jurassic period around 205-180 million years ago

Maiasaura hatchling
An animated model of the dinosaur Miasaura, created by Kokoro Ltd. for the Natural History Museum, London. This dinosaur whose name meand good mother lizard lived during the Upper Cretaceous 60-85 mya

Allosaurus
A skeletal reconstruction of Allosaurus, the Upper Jurassic carnivorous dinosaur that lived 153 to 135 million years ago. On display at the Natural History Museum, London

Dromaeosaurus
The skeleton of a Dromaeosaurus, a small fast predatory dinosaur with sharp teeth and a large claw on each foot. The lived during the Upper Cretaceous 76 to 72 million years ago

Albertosaurus
Detail of a skeletal display of Albertosaurus showing the skull, on display at the Natural History Museum, London. The Albertosaurus lived 76 to 74 million years ago during the Upper Cretaceous period

Archaeopteryx [Berlin specimen]
Cast of the Archaeopteryx fossil specimen held at the Berlin Natural History Museum. It shows clearly the spread-out wings and long clased fingers

Maiasaura with young
An animated model of the dinosaur Miasaura, created by Kokoro Ltd. for the Natural History Museum, London. This dinosaur whose name meand good mother lizard lived during the Upper Cretaceous 60-85 mya

Lesothosaurus
This dinosaur was a bipedal herbivore. It lived between 205 and 180 million years ago during the Lower Jurassic period. It was a small, (1 metre in lengh) primative ornithopod

Gallimimus, Tyrannosaurus & Diplodocus
Gallimimus (top left). This was a 6 metre long omnivore which lived 74 mya

Diplodocus, Euoplocephalus & Hypsilophodon
Euoplocephalus (top left). This was an armoured herbivore living 76 mya. Hypsilophodon (tor right) was an earlier, bipedal herbivore which lived 125 mya

Ceratosaurus
Anterior skeleton of the bipedal carnivorous dinosaur, Ceretosaurus, mounted for display at the US National Museum of Natural History, Washington DC. This dinosaur lived 150 to 144 million years ago

Dinner in the Iguanodon model
An engraving of a dinner being held at the Crystal Palace inside the first full sized model of an Iguanodon made by Waterhouse Hawkins in 1853

Iguanodon reconstruction by Gideon Mantell

Proceratosaurus fossil skull
A fossil skull that belonged to Proceratosaurus, a carnivorous, dinosaur from the suborder of Theropods that lived during the Middle Jurassic period around 169 - 164 mya

Iguanodon model, 1990s
Studies show that the weight of Iguanodons body was counterbalanced by the heavy tail and that it was able to move on two or four legs. They lived between 140 and 110 million years ago

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

Iguanodon model at Crystal Palace
A concrete model of the Iguanodon, as conceived by Professor Sir Richard Owen. It is located in the grounds of Crystal Palace, London and was worked on by Waterhouse Hawkins and Joseph Paxton in 1854

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

Deinocheirus
A pair of arms complete with 30 cm claws on each hand once belonging to Deinocheirus, an Upper Cretactous carnivorous dinosaur. This specimen was discovered in Mongolia

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

Dryosaurus hollow bone structure
Fragmented femur from Dryosaurus, a fast running herbivorous dinosaur that lived during the Late Jurassic period, 155 to 140 million years ago. Fossil evidence has been discovered in Tanzania and USA

Dinosaurs discovered in western USA
A scene from Upper Cretacous western United States showing the following dinosaurs from left: Pachycephalosaurus, Ornithomimus, Triceratops and Tyrannosaurus rex

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

Psittacosaurus

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

Megalosaurus jaw
A fragment of a lower jaw that once belonged to the carnivorous dinosaur Megalosaurus. Throughout a dinosaurs life young teeth pushed up to replace old teeth

Iguanodon ischium
Close-up of a ischium, or hip-bone that belonged to the Iguanodon. It was discovered in Sussex and dates back to around 140 to 110 million years ago

Albertosaurus metatarsals
Skeletal reconstruction of Albertosaurus showing the hind leg and foot. The upper foot bones of this Albertosaurus are locked together for strength, perhaps to withstand the stresses of running

Iguanodon model
An Iguanodon model made during the 1940s from a reconstruction by Vernon Edward based on the Bernissart skeletons showing Iguanodon in a strictly two-legged kangaroo-like posture

Iguanodon model 1854
A 1/20 life size model of the dinosaur Iguanodon created by Waterhouse Hawkins in 1854 under the the supervision of Professor Sir Richard Owen. The model measures 40cm

Tyrannosaurus rex skull
Skull of the Upper Cretaceous dinosaur, on display in From the Beginning, Gallery 63, Earth Galleries at The Natural History Museum, London. Tyrannosaurus rex lived 67 to 65 million years ago

Baryonyx skeleton
The Baryonyx which lived during the Lower Cretaceous was a bipedal carnivore which had a set of sharp teeth as well as a 30cm claw on each forehand. Illustration by Jo Konopelko

Iguanodon leg
A model cross section of an Iguanodon leg showing the bones, muscles and foot. The Iguanodon was a mainly a bipedal dinosaur. It required large upper thigh muscles for balance and support

Upper Triassic dinosaurs discovered in Southern Germany
An illustration showing a scene in Upper Triassic (200 - 225 mya) Southern Germany, featuring 2 small Coelurosaurs, Procompsognathus (foreground) & 2 prosauropod Plateosaurus

Torvosaurus claw
A fossil claw once belonging to the dinosaur, Torvosaurus whose name means savage lizard. It was a carnivore which lived during the upper Jurassic period. Its fossils have been found in Colorado, USA

Hypsilophodon skeleton
A mounted skeleton of the dinosaur Hypsilophodon, whose name meand high-ridge tooth. This specimen that dates back to 125 million years ago was discovered in England

Oviraptor head
Oviraptor means bird thief and refers to this dinosaurs diet

Iguanodon teeth
Some original Iguanodon teeth found by Dr. and Mrs. Mantell. The tooth on the right is 5.3cm long as preserved

Iguanodon brain
A partial skull that contains a natural mould (endocast) of the interior of the skull where the brain would sit. This is a representation of the external shape of the Iguanodon brain

Iguanodon thumb spike
A fossil thumb spike that once belonged to Iguanodon, a herbivorous dinosaur that lived 140 to 110 million years ago. It is though to have used its sharp ended thumb to defend itself against predators

Iguanodon metatarsal
A fossil metatarsal (the long bone of the foot) that once belonged to the herbivorous bipedal dinosaur, Iguanodon. The rough patches are where the muscles and tendons were attached to the bone

Iguanodon foot
The right foot of a very large Iguanodon. Some of the toe joints have small frills of bony overgrowth, showing that the dinosaur was suffering from arthritis

Iguanodon hand
Fossil remains of a hand that once belonged to the herbivorous dinosaur, Iguanodon. Notice the very sharpe spike like thumb which is thought to have been used for defending itself against predators

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