THE DINOSAUR DIRECTORY

Explore the Dinosaurs

Explore prehistoric species by geological period, diet, region, and classification. Discover verified specimen data, anatomical metrics, and peer-reviewed life restorations from the Triassic, Jurassic, and Cretaceous periods.

7 dinosaurs found

Active filters: Region: North America Clear all
Jurassic Carnivore Specimen
Theropods North America

Allosaurus fragilis

Allosaurus fragilis • AL-oh-SORE-us FRAJ-ih-lis

Length 8.5m
Height 3m
Mass 2t
Stance Bipedal

The most common and lethal apex predator of the Late Jurassic Morrison Formation, hunting with gaping jaws, slashing…

Cretaceous Herbivore Specimen
Ankylosaurs North America

Ankylosaurus magniventris

Ankylosaurus magniventris • an-KY-low-SORE-us MAG-nih-VEN-tris

Length 8m
Height 1.7m
Mass 6t
Stance Quadrupedal

The living tank of the Late Cretaceous, armored in thick osteoderm plates with cranial horns and a massive…

Jurassic Herbivore Specimen
Sauropods North America

Brachiosaurus altithorax

Brachiosaurus altithorax • BRACK-ee-oh-SORE-us AL-tih-THOR-ax

Length 26m
Height 12m
Mass 35t
Stance Quadrupedal

A colossal macronarian sauropod with disproportionately long forelimbs and an elevated neck built for high-canopy conifer browsing during…

Triassic Carnivore Specimen
Theropods North America

Coelophysis bauri

Coelophysis bauri • SEE-low-FIE-sis BORE-eye

Length 3m
Height 1m
Stance Bipedal

A gracile, agile early theropod that flourished across Late Triassic floodplains, hunting small vertebrates and insects with slender…

Jurassic Herbivore Specimen
Stegosaurs North America

Stegosaurus stenops

Stegosaurus stenops • STEG-oh-SORE-us STEN-ops

Length 9m
Height 4m
Mass 5t
Stance Quadrupedal

An iconic plated herbivore possessing alternating osteodermal dorsal plates for thermoregulation or display and four lethal tail spikes…

Cretaceous Herbivore Specimen
Ceratopsians North America

Triceratops horridus

Triceratops horridus • tri-SERR-uh-tops HORR-ih-dus

Length 9m
Height 3m
Mass 6t
Stance Quadrupedal

Triceratops horridus is one of the most recognizable horned dinosaurs. Equipped with two brow horns measuring up to…

Cretaceous Carnivore Specimen
Theropods North America

Tyrannosaurus rex

Tyrannosaurus rex • tie-RAN-oh-SORE-us RECKS

Length 12.3m
Height 3.7m
Mass 8.4t
Stance Bipedal

Tyrannosaurus rex was one of the largest terrestrial carnivores of all time, roaming western North America just prior…