Alamosaurus sanjuanensis
species · Gilmore 1922 · accepted · extinct
31 fossil sites · 6 formations · 2 countries
Lived when
Cretaceous – Paleogene
83.6–66 million years ago
Found where
2 countries
6 rock formations
Fossil record
31 sites
1 catalogued specimens
Inside this group
Immediate children
- Terminal taxon — no children recorded.
Did you know
Facts from the record
- Its fossils span about 18 million years, from 83.6 to 66 million years ago.
- The youngest known fossil is around 66 million years old — that is roughly 220 times further back than the whole of human history.
- Alamosaurus sanjuanensis was named in 1922 (Gilmore 1922) — 104 years ago.
- Fossils have been recorded in 2 countries and 6 named rock formations.
- 1 individual specimens are catalogued in museum collections.
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Where next
Data from the Paleobiology Database (CC BY 4.0).