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Dilophosaurus

The twin-crested hunter of Kayenta

Cryolophosaurus

Antarctica's crested Jurassic hunter

Xiongguanlong

A "before-the-tyrants" tyrannosauroid

Earless Monitor Lizard

Borneo's "hidden-ear" river guardian

Xiaosaurus

Small bones, big uncertainty

Opabinia

Five eyes, one weird proboscis

Xiaotingia

A near-bird from Jurassic Liaoning

Xenotarsosaurus

Patagonia's "strange-ankled" hunter

Ichthyostega

Half fish, half pioneer tetrapod

Seymouria

A near-amniote on Permian shores

Epicyon haydeni

Miocene muscle: the bone-crushing canid

Dromornis stirtoni

Australia's Miocene mega-bird

Supersaurus

Jurassic length, Morrison legend

Shantungosaurus

Shandong's colossal duck-bill grazer

Amphicoelias Fragillimus

The lost giant of the Morrison

Arambourgiania

A sky-giant with a giraffe-long neck

Theropod

From raptors to robins: all theropod

Albertonectes

Alberta's long-necked sea swimmer

Argentinosaurus

Patagonia's almost-unfathomable giant

Thylacoleo carnifex

Australia's "lion" with a marsupial bite

Epidexipteryx

Display-feather dinosaur of Jurassic China

Gorgosaurus

Laramidia's long-legged tyrant

Shastasaurus

Triassic titan of the open sea

Masiakasaurus

Madagascar's forward-toothed hunter