Dinosauria›Saurischia
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Amphicoelias Amphicoelias brontodiplodocus Galiano and Albersdörfer 2010

/ˌæmfɪˈsiːliəs/
Late Jurassic · 157.9–152.2 Mya

Key Statistics

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

Where It Was Found

Country
United States
Region
Wyoming
Formation
Morrison
Dig sites
1
distinct collections
Recorded finds in United States. Present-day positions: the continents have moved since.

Overview

Amphicoelias brontodiplodocus is a sauropodomorph dinosaur known from the Late Jurassic, roughly 157.9–152.2 million years ago. It was a herbivore. It is recorded as ground-dwelling and herding. Fossils have been recovered from Wyoming, United States. It was named by Galiano and Albersdörfer 2010. The species is represented by 1 recorded occurrence in the Paleobiology Database.

Fossil Record Completeness

How much of this profile is grounded in the fossil record

~5%
confidence from occurrence count
Based on 1 recorded occurrence in the Paleobiology Database.

Geologic Time

Where Amphicoelias brontodiplodocus sits in deep time

TRIASSIC
JURASSIC
CRETACEOUS
Amphicoelias
252 Mya201 Mya145 Mya66 Mya

Relationships

Part of a wider fossil web

These species share Amphicoelias brontodiplodocus'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.

same–clade
Bicharracosaurus
Bicharracosaurus dionidei
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same–clade
Mamenchisaurus
Mamenchisaurus hochuanensis
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same–clade
Xinjiangtitan
Xinjiangtitan shanshanesis
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same–clade
Dystrophaeus
Dystrophaeus viaemalae
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