Noasaurus Facts
Pronunciation: NO-ah-SORE-us
Name meaning: Northwestern Argentina Lizard
| Diet | Carnivore |
| Height | 0.8m |
| Length | 2.5m |
| Weight | 25 kg |
| Environment | Land |
| Era | Cretaceous |
| Period | Late Cretaceous |
| Type | Theropod |
| Location | Argentina |
Noasaurus was a small theropod dinosaur that lived approximately 72 million years ago during the Late Cretaceous period in what is now Argentina. This carnivorous dinosaur walked on two legs and represents one of the most important discoveries in understanding the evolution of ceratosaurian theropods in South America.
Measuring roughly 2.5 metres in length and standing about 80 centimetres tall at the hip, Noasaurus was a relatively small predator that likely weighed around 25 kilograms. Its lightweight build suggests it was a swift and agile hunter, well-adapted for pursuing smaller prey through the Late Cretaceous landscapes of South America.
As a theropod, Noasaurus possessed the typical carnivorous features of sharp teeth and powerful claws for catching and processing meat. The fragmentary remains discovered suggest it had a build similar to other small theropods, with long legs for running and strong arms equipped with clawed hands for grasping prey.
What makes Noasaurus particularly significant is that it became the founding member of its own family when first described. Originally thought to be a coelurosaur, later research revealed it belonged to the ceratosaurian group, helping palaeontologists better understand the diversity and distribution of theropod dinosaurs in the southern continents during the Cretaceous period.
What made Noasaurus distinctive?
Noasaurus possessed typical small theropod characteristics including a lightweight build, long legs adapted for swift movement, and sharp claws on both hands and feet. Its fragmentary remains suggest proportions similar to other agile predatory dinosaurs of its size.
Behaviour
As a small theropod, Noasaurus likely hunted smaller animals including lizards, early mammals, and possibly juvenile dinosaurs. Its lightweight build and long legs suggest it was an active predator that relied on speed and agility rather than size to catch prey.
Discovery
Noasaurus was first described by José Fernando Bonaparte and Jaime Powell in 1980. The original fossils were discovered at Lecho Formation, Salta Province, Argentina.
Noasaurus FAQ
What did Noasaurus eat?
Noasaurus was a carnivore that likely preyed on smaller animals including lizards, early mammals, insects, and possibly young dinosaurs. Its sharp teeth and claws were perfectly adapted for catching and eating meat.
How big was Noasaurus?
Noasaurus was a relatively small dinosaur, measuring about 2.5 metres long and standing roughly 80 centimetres tall at the hip. It weighed approximately 25 kilograms, making it similar in size to a large dog.
When did Noasaurus live?
Noasaurus lived during the
Late Cretaceous period, specifically around 72.2 million years ago during the Maastrichtian stage. This makes it one of the last dinosaurs before the mass extinction event.
Where was Noasaurus found?
Noasaurus fossils were discovered in Argentina, specifically in the Lecho Formation of Salta Province. The remains were found in 1975 by a team led by the famous palaeontologist José Fernando Bonaparte.
How do you pronounce Noasaurus?
Noasaurus is pronounced 'NO-ah-SORE-us'. The name breaks down into three syllables, with emphasis typically placed on the first syllable.
What does Noasaurus mean?
Noasaurus means 'Northwestern Argentina Lizard'. The name reflects both its discovery location in northwestern Argentina and follows the traditional naming convention of adding 'saurus' (meaning lizard) to dinosaur names.
How fast could Noasaurus run?
The exact speed of Noasaurus is unknown due to limited fossil evidence. However, its lightweight build and long legs suggest it was likely a swift runner, probably capable of quick bursts of speed when hunting or escaping danger.
What type of dinosaur was Noasaurus?
Noasaurus was a theropod dinosaur, specifically belonging to the ceratosaurian group and the family Noasauridae. It was a small, bipedal carnivore that walked on two legs and hunted other animals for food.
Was Noasaurus related to birds?
As a ceratosaurian theropod, Noasaurus was more distantly related to modern birds than some other theropod groups. Birds evolved from coelurosaur theropods, whilst Noasaurus belonged to the ceratosaur lineage, making it a more distant relative.
How many Noasaurus fossils have been found?
Very few Noasaurus fossils have been discovered. The species is known primarily from fragmentary remains including some skull and body bones found at the original site in Argentina. No complete skeleton has been found.
