Carcharodontosaurus vs Pachycephalosaurus

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

Side-by-Side Comparison

คุณสมบัติ	Carcharodontosaurus	Pachycephalosaurus
ชื่อวิทยาศาสตร์	Carcharodontosaurus saharicus	Pachycephalosaurus wyomingensis
การจำแนกประเภท	Theropoda	Pachycephalosauria
ยุคสมัย	Cretaceous Early	Cretaceous Late
อาหาร	Carnivore	Herbivore
ความยาว	12.0 m	4.5 m
Height	3.6 m	1.8 m
น้ำหนัก	6.2 t	450 kg
ปีที่ค้นพบ	1931	1943
สถานที่ค้นพบ	Kem Kem Beds, Morocco	Montana, USA
ตั้งชื่อโดย	Ernst Stromer	Barnum Brown & Erich Schlaikjer

Size Comparison

Carcharodontosaurus 12.0 m

about as long as 2 cars end-to-end

Pachycephalosaurus 4.5 m

roughly the length of a large SUV

Weight Comparison

Carcharodontosaurus 6.2 t

about the weight of 1.0 elephants

Pachycephalosaurus 450 kg

about 6 adult humans

Timeline Comparison

Carcharodontosaurus

145.0 Mya Cretaceous Early (Mesozoic) 100.5 Mya

Pachycephalosaurus

100.5 Mya Cretaceous Late (Mesozoic) 66.0 Mya

Diet Comparison

Carcharodontosaurus

Carnivore

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

Pachycephalosaurus

Herbivore

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

Classification Comparison

Carcharodontosaurus

Clade: Saurischia

Group: Theropoda

(Beast feet)

Pachycephalosaurus

Clade: Ornithischia

Group: Pachycephalosauria

(Thick-headed lizards)

Did You Know?

💡

Carcharodontosaurus was about 2.7x longer than Pachycephalosaurus.

💡

Carcharodontosaurus weighed roughly 14x more than Pachycephalosaurus.

💡

Carcharodontosaurus was a carnivore while Pachycephalosaurus was a herbivore.

💡

Carcharodontosaurus lived during the Cretaceous Early while Pachycephalosaurus lived during the Cretaceous Late, separated by roughly 0 million years.

💡

Carcharodontosaurus was discovered 12 years earlier, in 1931.

💡

Carcharodontosaurus belonged to Theropoda while Pachycephalosaurus belonged to Pachycephalosauria.