Skip to content

Look up · dinosaur 780 of 1,425

Original drawing of Mamenchisaurus

long-neck giant

Mamenchisaurus

Say it like this: “muh-MUN-chee-SOR-uhs, or spelling pronunciation”

Mamenchisaurus constructus

Mamenchisaurus ate plants and walked on four legs. It lived in the Middle Jurassic · Late Jurassic. Bones have been found in China.

When
Middle Jurassic · Late Jurassic (Callovian–Tithonian) · roughly 165.3 to 143.1 million years ago
Named in
1954 · Young, C. C.
Hip height
3.1 m · 10 ft
Length
13–35 m · 43–115 ft
Weight
5–45 tonnes
Found in
China · Shaximiao
Food and walking
Herbivore · Four legs
Kind
long-neck giant · Sauropod
Family branch
Mamenchisauridae

The story in short

The genus Mamenchisaurus dates to 1954, the year C. C. Young described it. The name means “mamenchi lizard.”

It lived in the Middle Jurassic · Late Jurassic (Callovian–Tithonian), roughly 165.3 to 143.1 million years ago. Finds come from China, including the Shaximiao Formation. It was a herbivore and walked on four legs.

Published estimates put Mamenchisaurus at a length near 13–35 m, hips about 3.1 m high, and a body mass around 5–45 tonnes.

On the family tree it sits in Mamenchisauridae, among the sauropod dinosaurs.

This entry is the whole genus. The type species is Mamenchisaurus constructus. Other named species include Mamenchisaurus sinocanadorum, Mamenchisaurus hochuanensis, Mamenchisaurus youngi, and Mamenchisaurus sanjiangensis.

Other species with this name

  • Mamenchisaurus constructus
  • Mamenchisaurus sinocanadorum
  • Mamenchisaurus hochuanensis
  • Mamenchisaurus youngi
  • Mamenchisaurus sanjiangensis

Close relatives