Outline: a typical sauropod
Xenoposeidon
"strange Poseidon"
Type species Xenoposeidon proneneukos
- Lived
- 139 to 133 million years ago, Early Cretaceous
- Diet
- Herbivore
- Group
- Sauropods, Rebbachisauridae
- Found in
- United Kingdom
- Named by
- Taylor and Naish 2007
Where its fossils were found
The evidence
Today
135 million years ago
Field notes
About Xenoposeidon
What it was like
Xenoposeidon was a sauropod known from a single back bone. That bone is so unusual in shape that it clearly came from a new kind of sauropod. It was probably a rebbachisaurid, the family of Rebbachisaurus.
Its world
It lived in the Early Cretaceous, in what is now England. It comes from the Ashdown Formation, where early relatives of Iguanodon and the armored Hylaeosaurus also lived.
How it was found
Taylor and Naish named Xenoposeidon in 2007. The type species is Xenoposeidon proneneukos. The bone had sat in a museum collection for over a century before it was studied.
Lived alongside
Found in the same rock formations
Close relatives
Other members of Rebbachisauridae
Sources: WikidataNamed in: M. P. Taylor and D. Naish. 2007. An unusual new neosauropod dinosaur from the Lower Cretaceous Hastings Beds Group of East Sussex, England. Palaeontology 50(6):1547-1564


