Outline: a typical sauropod

Cañadón Calcáreo Fm., ArgentinaNamed 2005

Brachytrachelopan

"short-necked shepherd"

Lived
155 to 145 million years ago, Late Jurassic
Diet
Herbivore
Length
about 10 m (33 ft)
Group
Sauropods, Dicraeosauridae
Found in
Argentina
Named by
Rauhut et al. 2005

Size comparison

To scale

Where its fossils were found

The evidence

Today

1 find

150 million years ago

Map: C. R. Scotese, PALEOMAP

Field notes

About Brachytrachelopan

What it was like

Brachytrachelopan was a sauropod with a surprisingly short neck. Most sauropods had very long necks, but this one's neck was shorter than its back, so it probably fed close to the ground, on low plants, rather than reaching high into trees.

It was about 10 meters (33 feet) long and belonged to the dicraeosaurs, a family of smaller sauropods that includes Amargasaurus and Dicraeosaurus.

Its world

It lived about 155 to 145 million years ago, in the Late Jurassic, in what is now Argentina. Its bones come from the Cañadón Calcáreo Formation, where it shared the land with the larger sauropod Tehuelchesaurus.

How it was found

Rauhut and colleagues named Brachytrachelopan in 2005, from a single partial skeleton. The first bones were spotted by a shepherd looking for lost sheep, which is where the name comes from.

Lived alongside

Found in the same rock formations

Close relatives

Other members of Dicraeosauridae

Sources: WikidataNamed in: O. W. M. Rauhut, K. Remes, and R. Fechner, G. Cladera, P. Puerta. 2005. Discovery of a short-necked sauropod dinosaur from the Late Jurassic period of Patagonia. Nature 435:670-672