Bipedal Collection (page 3)

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. It was up to 4 metres long and 2 metres high with short arms

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. It was a fast, bipedal omnivore living in the upper Cretaceous, using its toothless horny beak to crush eggs and eat seeds

Iguanodon teeth
Some original Iguanodon teeth found by Dr. and Mrs. Mantell. The tooth on the right is 5.3cm long as preserved. Iguanodon was a large plant eater with cheek teeth for grinding vegetation

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

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

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