Notocolossus Facts
Pronunciation: NO-toe-co-LOSS-us
Name meaning: Southern Giant
| Diet | Herbivore |
| Height | 7m |
| Length | 26m |
| Weight | 60 tonnes |
| Environment | Land |
| Era | Cretaceous |
| Period | Late Cretaceous |
| Type | Sauropod |
| Location | Argentina |
Notocolossus was a truly enormous sauropod dinosaur that lived approximately 89.8 million years ago during the Late Cretaceous period in what is now Argentina. As one of the largest land animals ever discovered, this colossal herbivore represents the peak of sauropod evolution in South America, showcasing just how massive these long-necked giants could become.
This remarkable sauropod possessed the classic body plan of its group: an extremely long neck for reaching high vegetation, a relatively small head, a massive barrel-shaped body, and a long, whip-like tail. Notocolossus likely spent its days methodically stripping leaves, ferns, and conifers from the Cretaceous landscape of ancient Argentina. Its enormous size would have provided protection from most predators, though large theropods of the time may still have posed a threat to younger individuals.
The discovery of Notocolossus has provided valuable insights into the diversity and gigantism of South American sauropods during the Cretaceous period. Like other titanosaurian sauropods, it probably possessed small, bony plates embedded in its skin called osteoderms, which may have provided additional protection. The sheer scale of this dinosaur demonstrates how successful the sauropod body plan was in prehistoric ecosystems.
What made Notocolossus distinctive?
Notocolossus was characterised by its absolutely massive size, even among sauropods, with robust leg bones and vertebrae that supported its enormous weight. Its proportions suggest it was built for maximum size rather than speed, with particularly thick limb bones to support its colossal frame.
Behaviour
Notocolossus likely lived in herds, moving slowly across the Late Cretaceous landscape in search of suitable vegetation. Its enormous size meant it would have needed to consume vast quantities of plant material daily, probably feeding almost continuously during daylight hours.
Notocolossus FAQ
What did Notocolossus eat?
Notocolossus was a herbivore that fed on the plants available in
Late Cretaceous Argentina, including ferns, conifers, and flowering plants. Its long neck allowed it to reach vegetation at various heights, from ground level to treetops over 7 metres high.
How big was Notocolossus?
Notocolossus was approximately 26 metres long and 7 metres tall at the hip, weighing an estimated 60 tonnes. This makes it one of the largest land animals ever discovered, rivalling other giant sauropods like Argentinosaurus.
When did Notocolossus live?
Notocolossus lived during the
Late Cretaceous period, approximately 89.8 million years ago during the Turonian stage. This was a time when South America was isolated from other continents.
Where was Notocolossus found?
Notocolossus was discovered in Mendoza Province, Argentina. The fossils were found in
Late Cretaceous rock formations that preserve the ancient ecosystems of South America from around 90 million years ago.
How do you pronounce Notocolossus?
Notocolossus is pronounced 'NO-toe-co-LOSS-us', with emphasis on the 'LOSS' syllable. The name combines Latin words meaning 'southern giant'.
What does Notocolossus mean?
Notocolossus means 'Southern Giant' in Latin, referring to both its enormous size and its discovery in South America. The name perfectly captures the essence of this colossal dinosaur.
How fast could Notocolossus run?
Due to its enormous size and weight, Notocolossus was almost certainly a very slow-moving animal. Its massive frame was built for supporting weight rather than speed, so it likely moved at a steady walking pace of just a few kilometres per hour.
What type of dinosaur was Notocolossus?
Notocolossus was a sauropod dinosaur, specifically a member of the titanosaur family. Sauropods were the largest land animals ever, characterised by their long necks, small heads, massive bodies, and long tails.
Was Notocolossus related to birds?
Like all dinosaurs, Notocolossus was distantly related to modern birds, but sauropods like Notocolossus were not on the direct evolutionary line to birds. Birds evolved from small theropod dinosaurs, while Notocolossus belonged to the sauropod group.
How many Notocolossus fossils have been found?
Notocolossus is known from partial skeletal remains discovered in Argentina. While not a complete skeleton, enough material has been found to establish it as a distinct species and estimate its enormous size, including vertebrae and limb bones.
