Dinosauria › Saurischia › Sauropodomorpha › Saltasauridae
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Alamosaurus
Alamosaurus sanjuanensis Gilmore 1922
Late Cretaceous (Maastrichtian) · 83.6–66 Mya
Key Statistics
Diet
herbivore
Locomotion
quadrupedal
inferred from clade
Overview
Alamosaurus sanjuanensis is a sauropodomorph dinosaur known from the Late Cretaceous, roughly 83.6–66.0 million years ago. It was a herbivore. It was named by Gilmore 1922. The species is represented by 31 recorded occurrences in the Paleobiology Database.
Fossil Record Completeness
How much of this profile is grounded in the fossil record
~71%
confidence from occurrence count
Confirmed
Inferred
Based on 31 recorded occurrences in the Paleobiology Database.
Geologic Time
Where Alamosaurus sits in deep time
Alamosaurus
252 Mya201 Mya145 Mya66 Mya
Relationships
Part of a wider fossil web
These species share Alamosaurus's place in deep time — computed from overlapping age ranges, shared clades, and inferred ecology.