Dinosauria›Saurischia›Sauropodomorpha›Mamenchisauridae
Silhouette of Mamenchisaurus constructus

Mamenchisaurus Mamenchisaurus constructus Young 1954

/məˌmʌntʃiˈsɔːrəs/
Late Jurassic (Tithonian) · 161.5–143.1 Mya

Key Statistics

Diet
herbivore
Locomotion
quadrupedal
inferred from clade
Habitat
ground-dwelling
Social
herding

Where It Was Found

Country
China
Regions
Sichuan · Gansu
Formations
Shaximiao · Xiangtang
Dig sites
3
distinct collections
Recorded finds in China. Present-day positions: the continents have moved since.

Overview

Mamenchisaurus constructus is a sauropodomorph dinosaur known from the Late Jurassic, roughly 161.5–143.1 million years ago. It was a herbivore. It is recorded as ground-dwelling and herding. Fossils have been recovered from Sichuan, China. It was named by Young 1954. The species is represented by 3 recorded occurrences in the Paleobiology Database.

Fossil Record Completeness

How much of this profile is grounded in the fossil record

~11%
confidence from occurrence count
Based on 3 recorded occurrences in the Paleobiology Database.

Geologic Time

Where Mamenchisaurus constructus sits in deep time

TRIASSIC
JURASSIC
CRETACEOUS
Mamenchisaurus
252 Mya201 Mya145 Mya66 Mya

Relationships

Part of a wider fossil web

These species share Mamenchisaurus constructus's place in deep time — computed from overlapping age ranges, shared clades, and inferred ecology. Predator–prey pairs additionally have to have been dug up in the same place.

coexisted–with
Allosaurus
Allosaurus fragilis
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coexisted–with
Kentrosaurus
Kentrosaurus aethiopicus
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coexisted–with
Dacentrurus
Dacentrurus armatus
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coexisted–with
Camptosaurus
Camptosaurus dispar
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coexisted–with
Stegosaurus
Stegosaurus stenops
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same–clade
Tongnanlong
Tongnanlong zhimingi
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same–clade
Qijianglong
Qijianglong guokr
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same–clade
Dicraeosaurus
Dicraeosaurus hansemanni
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