Qunkasaura, Late CretaceousVillalba de la Sierra Formation, Spain · named 2024
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Qunkasaura

Type species Qunkasaura pintiquiniestra

Lived
84 to 66 million years ago, Late Cretaceous
Diet
Herbivore
Group
Sauropods, Saltasauridae
Found in
Spain
Named by
Mocho et al. 2024

Where its fossils were found

The evidence

Today

1 find

75 million years ago

Map: C. R. Scotese, PALEOMAP

Habitat

It lived on a muddy coastal floodplain crossed by sandy channels, with periods of flooding and drying. The Villalba de la Sierra Formation also preserves Lohuecotitan and Rhabdodon.

Field notes

About Qunkasaura

What it was like

Qunkasaura was a titanosaur, a long-necked, four-legged plant eater, known from a partial skeleton. It was related to Saltasaurus and Alamosaurus.

Its world

It lived in the Late Cretaceous in what is now central Spain. Its bones come from the Villalba de la Sierra Formation, at a rich fossil site that also produced the titanosaur Lohuecotitan and the plant eater Rhabdodon.

How it was found

Mocho and colleagues named Qunkasaura in 2024. Its name comes from an old name for the region.

Lived alongside

Found in the same rock formations

A rock formation can hold fossils laid down millions of years apart, so not every animal here met Qunkasaura.

The evidence

The science behind Qunkasaura

Which parts of the picture come from its own bones, and which come from its relatives.

From its own fossils

  • A partial skeleton preserves much of the back, the fused backbone at the hips, the base of the tail, the pelvis and parts of the limbs.
  • The tail vertebrae have forward-leaning spines and distinctive bony ridges around their joints.
  • The neck and back bones have a honeycomb of small internal air spaces.

Borrowed from relatives

  • The missing skull and most of the neck are restored using other titanosaurs.
  • Its bones place it close to Abditosaurus and among relatives of Alamosaurus and Opisthocoelicaudia.

Still unknown

  • The shape of its skull and the full length of its neck.
  • Its color and pattern of scales.
  • Whether it carried bony skin armor.

Discovery timeline

  1. 2015Its worldOrtega et al.
  2. 2016Same rocksDíez Díaz et al.
  3. 2024Named itMocho et al.

Key papers

The research behind what we know of Qunkasaura

Close relatives

Other members of Saltasauridae

Sources: Wikidata