Ferganasaurus, Middle JurassicBalabansai Formation, Kyrgyzstan · named 2003
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Ferganasaurus

"Fergana lizard"

Type species Ferganasaurus verzilini

Lived
165 to 162 million years ago, Middle Jurassic
Diet
Herbivore
Group
Sauropods
Found in
Kyrgyzstan
Named by
Alifanov and Averianov 2003

Where its fossils were found

The evidence

Today

1 find

165 million years ago

Map: C. R. Scotese, PALEOMAP

Habitat

It lived on coastal plains beside the Tethys in what is now Kyrgyzstan. The Balabansai Formation also contains Alpkarakush and Ferganocephale.

Field notes

About Ferganasaurus

What it was like

Ferganasaurus was a long-necked, four-legged plant eater, known from part of a skeleton. It was similar to Rhoetosaurus from Australia.

Its world

It lived in the Middle Jurassic in what is now Kyrgyzstan. Its bones come from the Balabansai Formation, where it shared the land with the hunter Alpkarakush.

How it was found

Alifanov and Averianov named Ferganasaurus in 2003, from a single find. The bones had been dug up decades earlier.

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 Ferganasaurus.

The evidence

The science behind Ferganasaurus

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

From its own fossils

  • The type skeleton includes back and tail vertebrae, hip bones and limb bones.
  • Its lost hand bones were recorded in drawings, with upright hand supports arranged in a semicircle and short, stout finger bones.

Borrowed from relatives

  • Its missing head is restored by comparison with Bagualia, and its missing hindfeet with Camarasaurus.

Still unknown

  • The shape of its skull, the length of its neck and whether the recorded claws came from the hands or feet.
  • Its exact position in the sauropod family tree, which differs between studies.
  • Its skin texture and color.

Discovery timeline

  1. 2003Named itAlifanov & Averianov
  2. 2005Same rocksAVERIANOV, MARTIN & BAKIROV
  3. 2024Same rocksRauhut et al.

Key papers

The research behind what we know of Ferganasaurus

Close relatives

Other members of Eusauropoda

Sources: Wikidata