Apatosaurus vs Herrerasaurus

A detailed side-by-side comparison of Apatosaurus and Herrerasaurus, covering size, diet, classification, geologic period, and discovery history.

Side-by-Side Comparison

गुण Apatosaurus Herrerasaurus
वैज्ञानिक नाम Apatosaurus ajax Herrerasaurus ischigualastensis
वर्गीकरण Sauropoda Saurischia
युग Jurassic Late Triassic Late
आहार Herbivore Carnivore
लंबाई 22.0 m 6.0 m
Height 4.5 m 1.5 m
वजन 22.7 t 350 kg
खोज वर्ष 1877 1963
खोज स्थान Morrison Formation, Colorado, USA Ischigualasto Formation, Argentina
नामकर्ता Othniel Charles Marsh Osvaldo Reig

Size Comparison

Apatosaurus 22.0 m

about as long as 4 cars end-to-end

Herrerasaurus 6.0 m

roughly the length of a large SUV

Weight Comparison

Apatosaurus 22.7 t

about the weight of 3.8 elephants

Herrerasaurus 350 kg

about 5 adult humans

Timeline Comparison

Apatosaurus
161.5 Mya Jurassic Late (Mesozoic) 145.0 Mya
Herrerasaurus
237.0 Mya Triassic Late (Mesozoic) 201.4 Mya

Diet Comparison

Apatosaurus

Herbivore

Apatosaurus was a plant-eater, feeding on vegetation like ferns, conifers, and cycads.

Herrerasaurus

Carnivore

Herrerasaurus was a meat-eating predator, hunting other animals for food.

Classification Comparison

Apatosaurus

Clade: Sauropodomorpha

Group: Sauropoda

(Lizard feet)

Herrerasaurus

Group: Saurischia

(Lizard-hipped dinosaurs)

Did You Know?

💡

Apatosaurus was about 3.7x longer than Herrerasaurus.

💡

Apatosaurus weighed roughly 65x more than Herrerasaurus.

💡

Apatosaurus was a herbivore while Herrerasaurus was a carnivore.

💡

Apatosaurus lived during the Jurassic Late while Herrerasaurus lived during the Triassic Late, separated by roughly 92 million years.

💡

Apatosaurus was discovered 86 years earlier, in 1877.

💡

Apatosaurus belonged to Sauropoda while Herrerasaurus belonged to Saurischia.

Compare With Other Dinosaurs

Explore These Dinosaurs

Explore the Natural World

Discover more across the Nature FYI family