Diamantinasaurus Facts
Pronunciation: die-ah-man-TIE-nah-SORE-us
Name meaning: Diamantina Lizard
| Diet | Herbivore |
| Height | 4m |
| Length | 16m |
| Weight | 15 tonnes |
| Environment | Land |
| Era | Cretaceous |
| Period | Late Cretaceous |
| Type | Sauropod |
| Location | Australia |
Diamantinasaurus was a massive sauropod dinosaur that roamed the ancient landscapes of Australia during the Late Cretaceous period, approximately 94 million years ago. This impressive herbivore belonged to a group of sauropods called titanosaurs, which were among the largest land animals ever to have existed. The genus name honours the nearby Diamantina River in Queensland, whilst the species name D. matildae pays tribute to the famous Australian song 'Waltzing Matilda'.
Like other sauropods, Diamantinasaurus possessed the characteristic long neck and tail, massive body, and pillar-like legs that made these dinosaurs so distinctive. Standing roughly 4 metres tall at the hip and stretching about 16 metres from nose to tail tip, it would have weighed approximately 15 tonnes. Its long neck would have allowed it to browse on vegetation at various heights, from ground-level ferns to tall conifer trees that dominated the Cretaceous forests of Australia.
As a herbivore, Diamantinasaurus spent much of its time feeding on the lush plant life that flourished in Australia's warm, humid climate during the mid-Cretaceous. It would have used its small head and simple, peg-like teeth to strip leaves and soft shoots from plants, swallowing them whole to be processed in its enormous gut. The fossil evidence suggests that Diamantinasaurus had particularly robust limb bones, indicating it was well-adapted to supporting its tremendous weight whilst moving across the ancient Australian landscape.
What made Diamantinasaurus distinctive?
Diamantinasaurus had particularly robust and heavily built limb bones compared to other titanosaur sauropods, suggesting it was exceptionally well-adapted to supporting great weight. The preserved shoulder girdle and pelvis show distinctive proportions that help palaeontologists distinguish it from other Australian sauropods.
Behaviour
Diamantinasaurus likely lived in herds for protection and social interaction, as evidenced by trackway sites of other sauropods. It would have spent most of its day feeding, using its long neck to reach vegetation at different heights without needing to move its massive body frequently.
Discovery
Diamantinasaurus was first described by Scott Hocknull in 2009. The original fossils were discovered at Winton Formation, Queensland, Australia.
Diamantinasaurus FAQ
What did Diamantinasaurus eat?
Diamantinasaurus was a herbivore that fed on the diverse plant life of Cretaceous Australia, including ferns, conifers, and early flowering plants. It used its long neck to browse at different heights and swallowed vegetation whole to be processed in its massive digestive system.
How big was Diamantinasaurus?
Diamantinasaurus stood about 4 metres tall at the hip and measured approximately 16 metres in total length. It weighed an estimated 15 tonnes, making it one of the largest land animals ever to live in Australia.
When did Diamantinasaurus live?
Diamantinasaurus lived during the
Late Cretaceous period, approximately 94 million years ago. This was during the middle part of the Cretaceous when Australia had a much warmer, more humid climate than today.
Where was Diamantinasaurus found?
Diamantinasaurus fossils were discovered in the Winton Formation of Queensland, Australia. The fossils were found near the Diamantina River, which inspired the dinosaur's name.
How do you pronounce Diamantinasaurus?
Diamantinasaurus is pronounced 'die-ah-man-TIE-nah-SORE-us'. The name combines 'Diamantina' (the local river) with 'saurus' meaning lizard in Greek.
What does Diamantinasaurus mean?
Diamantinasaurus means 'Diamantina Lizard', named after the Diamantina River near where the fossils were discovered in Queensland, Australia. The species name 'matildae' references the famous Australian song 'Waltzing Matilda'.
How fast could Diamantinasaurus run?
Due to its enormous size and weight of 15 tonnes, Diamantinasaurus would have moved quite slowly, likely at walking speeds similar to modern elephants. Its massive pillar-like legs were built for supporting weight rather than speed.
What type of dinosaur was Diamantinasaurus?
Diamantinasaurus was a sauropod dinosaur, specifically belonging to the titanosaur group within the family Titanosauridae. Sauropods were the long-necked, long-tailed herbivorous giants of the dinosaur world.
Was Diamantinasaurus related to birds?
As a sauropod dinosaur, Diamantinasaurus was not closely related to birds. Birds evolved from theropod dinosaurs, whilst Diamantinasaurus belonged to the sauropod group. However, all dinosaurs share a common ancestor, so there is a distant evolutionary relationship.
How many Diamantinasaurus fossils have been found?
Diamantinasaurus is known from relatively complete remains including a holotype specimen with most forelimb, shoulder girdle, pelvis, hindlimb and ribs, plus a paratype with additional bones. This makes it one of the most completely known sauropods from Australia.
