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An Allosaurus emerges from the forest and targets a Stegosaurus, which is approaching a stream. In the background, a Brachiosaurus, and in the dawn sky, pterosaurs.

Species Profiles

Carnotaurus sastrei

The Demonic Bull: Horns and Cranial Biomechanics Two prominent bony horns above the eyes define…
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Carcharodontosaurus

A Nightmare Armed with Serrated Blades Picture a biological guillotine lined with the teeth of a…
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Baryonyx

The anatomy of Baryonyx reveals an extraordinary adaptation to aquatic hunting. It drastically…
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Suchomimus tenerensis

The False Crocodile: A Snout Out of Place Picture a skull stretching 1.2 meters — straight,…
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Giganotosaurus carolinii

Giganotosaurus was a surgical assassin. It stretched as long as a standard city bus and weighed as…
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Microraptor

The Feathered Biplane of the Mesozoic Era Picture four wings, rather than two, silhouetted against…
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Afrovenator

The Aerodynamic Shadow of the Jurassic The sands of Niger yielded a fossil miracle. The almost…
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Allosaurus

The Predator's Frame: Skull and Crests The anatomy of Allosaurus was a biological masterpiece,…
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Compsognathus

Forget the earth-shaking giants. The true terror of the Jurassic undergrowth weighed as much as a…
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Gasosaurus

The Anatomy of an Ambush The skeleton of Gasosaurus points to a hunter built for explosive speed…
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Ornithomimus

The Cretaceous dragster: legs and locomotion The Ornithomimus was engineered to vanish. The hind…
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Spinosaurus aegyptiacus

This animal stands as perhaps the most extraordinary carnivorous dinosaur ever discovered, sparking…
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