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506750
Caption: Notharctus, an extinct genus of small primates from the Eocene Epoch that shares many similarities with modern lemurs
Artist: Encyclopaedia Britannica
Release: Not Applicable
File Size: 12.50 MB
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506719
Caption: Depiction of the extinct genus Hyaenodon
Artist: Encyclopaedia Britannica
Release: Not Applicable
File Size: 8.91 MB
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481076
Caption: Sketch of Anomalocaris canadensis. Members of the genus Anomalocaris were the largest marine predators of the Cambrian Period.
Artist: Encyclopaedia Britannica
Release: Not Applicable
File Size: 8.45 MB
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507537
Caption: Ichthyosaur (Ichthyosaurus)
Artist: Encyclopaedia Britannica
Release: Not Applicable
File Size: 11.17 MB
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481235
Caption: The ancestral horse Miohippus. Existing toe bones of the forefoot are numbered outward from the centre of the body.
Artist: Encyclopaedia Britannica
Release: Not Applicable
File Size: 14.72 MB
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481046
Caption: Australopithecus afarensis, the 'southern ape,' which lived from 3.8 to 2.9 million years ago.
Artist: Encyclopaedia Britannica
Release: Not Applicable
File Size: 10.47 MB
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481166
Caption: The ancestral horse Merychippus. Existing toe bones of the forefoot are numbered outward from the centre of the body.
Artist: Encyclopaedia Britannica
Release: Not Applicable
File Size: 14.14 MB
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481035
Caption: The extinct dawn horse (Hyracotherium). Existing toe bones of the forefoot are numbered outward from the centre of the body.
Artist: Encyclopaedia Britannica
Release: Not Applicable
File Size: 14.18 MB
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509815
Caption: Ostracoderm (Ostracoderma)
Artist: Encyclopaedia Britannica
Release: Not Applicable
File Size: 4.11 MB
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481299
Caption: Plateosaurus, 'flat lizard,' a late Triassic herbivore. It may have reared up and used its long neck to reach high vegetation.
Artist: Encyclopaedia Britannica
Release: Not Applicable
File Size: 8.08 MB
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481259
Caption: Evolutionary rates of three proteins: fibrinopeptides (very fast), hemoglobin (intermediate), and cytochrome c (slow).
Artist: Encyclopaedia Britannica
Release: Not Applicable
File Size: 3.19 MB
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481042
Caption: Ornithomimus, late Cretaceous dinosaur. A swift omnivore with a small head and toothless beak, its name means 'bird mimic.'
Artist: Encyclopaedia Britannica
Release: Not Applicable
File Size: 9.43 MB
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481427
Caption: Protoceratops, 'first horned face,' late Cretaceous Period. Solidly built, this herbivore had a parrotlike beak and bony frill.
Artist: Encyclopaedia Britannica
Release: Not Applicable
File Size: 6.79 MB
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481251
Caption: Triceratops, 'three-horned face,' massive late Cretaceous herbivore that was one of the last and most numerous of dinosaurs.
Artist: Encyclopaedia Britannica
Release: Not Applicable
File Size: 7.48 MB
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481449
Caption: Parasaurolophus, 'beside Saurolophus,' a late Cretaceous herbivore with a hollow crest extending from the back of its skull.
Artist: Encyclopaedia Britannica
Release: Not Applicable
File Size: 7.66 MB
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481116
Caption: Troodon, 'wounding tooth,' late Cretaceous dinosaur. This birdlike predator had binocular vision and a relatively large brain.
Artist: Encyclopaedia Britannica
Release: Not Applicable
File Size: 10.35 MB
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481085
Caption: Stegosaurus, 'roof lizard,' the largest known plated dinosaur, lived during the late Jurassic period.
Artist: Encyclopaedia Britannica
Release: Not Applicable
File Size: 9.04 MB
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481106
Caption: Homo erectus, 'upright man,' which lived from approximately 1,700,000 to 200,000 years ago.
Artist: Encyclopaedia Britannica
Release: Not Applicable
File Size: 10.50 MB
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481167
Caption: Lesothosaurus, 'Lesotho lizard,' early Jurassic dinosaur. This tiny herbivore was built lightly due to its hollow bones.
Artist: Encyclopaedia Britannica
Release: Not Applicable
File Size: 8.97 MB
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481551
Caption: Shantungosaurus, 'Shantung lizard,' late Cretaceous dinosaur. This flat-headed herbivore had an extended jaw to hold many teeth.
Artist: Encyclopaedia Britannica
Release: Not Applicable
File Size: 7.63 MB
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481072
Caption: A geologic time scale shows major evolutionary events from 650 million years ago to the present.
Artist: Encyclopaedia Britannica
Release: Not Applicable
File Size: 41.21 MB
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481036
Caption: Lambeosaurus, 'Lambe's lizard,' late Cretaceous dinosaur. A robust herbivore with a distinctive head crest.
Artist: Encyclopaedia Britannica
Release: Not Applicable
File Size: 11.04 MB
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480988
Caption: Pachycephalosaurus, 'thick-headed lizard,' a late Cretaceous Era herbivore with a distinctive dome-shaped skull and spiky snout.
Artist: Encyclopaedia Britannica
Release: Not Applicable
File Size: 8.17 MB
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506948
Caption: Megatherium, the largest of the extinct ground sloths, with a size that approximated that of a modern elephant
Artist: Encyclopaedia Britannica
Release: Not Applicable
File Size: 11.75 MB
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481135
Caption: Oviraptor, 'egg thief' or 'egg robber,' late Cretaceous dinosaur. A birdlike predator with a crest and a horny beak.
Artist: Encyclopaedia Britannica
Release: Not Applicable
File Size: 9.07 MB
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481131
Caption: Skeleton of the dinosaur Troodon, a late Cretaceous birdlike predator with large eyes and a relatively large brain.
Artist: Encyclopaedia Britannica
Release: Not Applicable
File Size: 10.21 MB
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506833
Caption: Mesohippus, a genus of extinct early and middle Oligocene horses
Artist: Encyclopaedia Britannica
Release: Not Applicable
File Size: 9.35 MB
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480996
Caption: Tyrannosaurus, 'tyrant lizard,' late Cretaceous dinosaur. A large, powerful predator with an enormous head and serrated teeth.
Artist: Encyclopaedia Britannica
Release: Not Applicable
File Size: 7.15 MB
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481505
Caption: Skeleton of the dinosaur Tyrannosaurus, a late Cretaceous predator with an enormous head and serrated teeth.
Artist: Encyclopaedia Britannica
Release: Not Applicable
File Size: 7.11 MB
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481412
Caption: Psittacosaurus, 'parrot lizard,' early Cretaceous dinosaur, small herbivore with a short head, parrotlike beak and cheek horns.
Artist: Encyclopaedia Britannica
Release: Not Applicable
File Size: 8.74 MB
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481390
Caption: Velociraptor, 'quick plunderer,' a ferocious late Cretaceous predator with large sickle-shaped claws on its second toes.
Artist: Encyclopaedia Britannica
Release: Not Applicable
File Size: 7.15 MB
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123772
Caption: Large horse being pulled
Artist: John Rush
Release: Not Applicable
File Size: 30.37 MB