Brachytrachelopan Facts
Pronunciation: BRACK-ee-track-eh-low-pan
Name meaning: Short-necked Pan
| Diet | Herbivore |
| Height | 3m |
| Length | 10m |
| Weight | 5 tonnes |
| Environment | Land |
| Era | Jurassic |
| Period | Late Jurassic |
| Type | Sauropod |
| Location | Argentina |
Brachytrachelopan was a remarkable sauropod dinosaur that lived during the Late Jurassic period, approximately 155 million years ago, in what is now Argentina. Unlike its long-necked sauropod relatives, this extraordinary dinosaur possessed a surprisingly short neck, making it one of the most unusual members of the sauropod family ever discovered.
This herbivorous sauropod measured roughly 10 metres in length and stood about 3 metres tall at the hip, making it considerably smaller than many of its gigantic relatives like Diplodocus or Brontosaurus. What truly set Brachytrachelopan apart was its compact neck, which contained only eight cervical vertebrae that were much shorter than those found in other sauropods. This unique adaptation suggests it fed on low-growing vegetation rather than reaching high into tree canopies like other sauropods.
The single known specimen was discovered in the Cañadón Calcáreo Formation in Chubut Province, Argentina, preserved in fluvial sandstone deposits. Although incomplete, the fossilised remains include portions of the spine, ribs, and some limb bones, providing valuable insights into this unusual sauropod's anatomy. The fossil was found in articulation, meaning the bones remained connected as they would have been in life, which is relatively rare and scientifically valuable.
As a herbivore, Brachytrachelopan would have used its short neck to browse on ferns, cycads, and other low-growing plants that flourished during the Late Jurassic period. Its unique body plan represents a fascinating evolutionary experiment within the sauropod lineage, demonstrating how these giants adapted to different ecological niches.
What made Brachytrachelopan distinctive?
Brachytrachelopan's most distinctive feature was its unusually short neck compared to other sauropods, with only eight compact cervical vertebrae. This gave it a more proportioned appearance than its long-necked relatives, adapted for low-level browsing rather than high canopy feeding.
Behaviour
Brachytrachelopan likely spent most of its time feeding on low-growing vegetation, using its short neck to efficiently browse ferns and other ground-level plants. As a sauropod, it would have lived in herds for protection and moved slowly across the Late Jurassic landscape of Argentina.
Discovery
Brachytrachelopan was first described by Oliver Rauhut in 2005. The original fossils were discovered at Cañadón Calcáreo Formation, Chubut Province, Argentina.
Brachytrachelopan FAQ
What did Brachytrachelopan eat?
Brachytrachelopan was a herbivore that fed on low-growing plants such as ferns, cycads, and other vegetation that grew close to the ground during the
Late Jurassic period. Its short neck was perfectly adapted for this type of low-level browsing, unlike other sauropods that reached high into tree canopies.
How big was Brachytrachelopan?
Brachytrachelopan measured approximately 10 metres in length and stood about 3 metres tall at the hip. It weighed an estimated 5 tonnes, making it considerably smaller than many other sauropod dinosaurs like
Diplodocus or
Brontosaurus.
When did Brachytrachelopan live?
Brachytrachelopan lived during the
Late Jurassic period, approximately 154.8 million years ago. This was a time when sauropod dinosaurs were diversifying into many different forms and sizes across the world.
Where was Brachytrachelopan found?
Brachytrachelopan was discovered in Argentina, specifically in the Cañadón Calcáreo Formation in Chubut Province. The fossil was found in fluvial sandstone deposits on a hill about 25 kilometres north-northeast of Cerro Cóndor.
How do you pronounce Brachytrachelopan?
Brachytrachelopan is pronounced 'BRACK-ee-track-eh-low-pan'. The name can be broken down into parts: 'brachy' meaning short, 'trachelo' meaning neck, and 'pan' referring to the Greek god of shepherds.
What does Brachytrachelopan mean?
Brachytrachelopan means 'short-necked Pan', referring to its unusually short neck for a sauropod and honouring Pan, the Greek god of shepherds. This name was chosen because the fossil was discovered by a local shepherd searching for lost sheep.
How fast could Brachytrachelopan run?
Like most sauropod dinosaurs, Brachytrachelopan was likely a slow-moving animal that walked rather than ran. Its large size and body structure would have made it unsuited for fast locomotion, probably moving at walking speeds similar to modern elephants.
What type of dinosaur was Brachytrachelopan?
Brachytrachelopan was a sauropod dinosaur, belonging to the family Dicraeosauridae. Sauropods were long-necked, plant-eating dinosaurs, though Brachytrachelopan was unusual in having a much shorter neck than typical members of this group.
Was Brachytrachelopan related to birds?
Brachytrachelopan was not closely related to birds. As a sauropod, it belonged to a completely different group of dinosaurs called saurischians, but it was on a different evolutionary branch from the theropod dinosaurs that eventually gave rise to modern birds.
How many Brachytrachelopan fossils have been found?
Only one specimen of Brachytrachelopan has ever been discovered - the holotype found in Argentina. This single fossil is incomplete but includes important parts of the spine, ribs, and some limb bones that were found still connected together.
