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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

Tyrannosaurus rex

The anatomy of the Tyrannosaurus describes a biological machine calibrated for lethal trauma. A…
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Velociraptor

The anatomy of Velociraptor outlines a predator with a skeletal framework and plumage entirely…
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Brontosaurus

Evolution sculpted this imposing sauropod with one primary goal: supporting a titanic mass. …
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Diplodocus

The Living Bridge: Body, Neck, and Defenses Picture Diplodocus as a gigantic, biological…
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Brachiosaurus

The Living Tower: Posture and Limbs The anatomy of Brachiosaurus was a masterpiece of…
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Aardonyx

The Bipedal Paradox: Limbs and Locomotion Measuring roughly 7 meters long and weighing as much as…
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Ankylosaurus magniventris

The Living Tank: Build and Posture The anatomy of Ankylosaurus functioned as a mobile fortress,…
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4 Stegosauruses heat near river

Stegosaurus

The anatomy of the Stegosaurus is defined by a stark disproportion between its massive, tank-like…
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Torosaurus

The Pierced Shield (Skull and Frill) The anatomy of Torosaurus is defined by a cranial scaffolding…
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Triceratops

The walking armory (Skull and horns) The anatomy of Triceratops relies on a cranial architecture…
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Iguanodon bernissartensis

The Wrist Dagger A straight, fifteen-centimeter cone of bone, rigidly fused to the joint, served…
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Lambeosaurus lambei

The Acoustic Crown of the Cretaceous Forget spikes and claws; this giant's ultimate survival tool…
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