Rahiolisaurus Facts
Pronunciation: rah-hee-oh-ly-SORE-us
Name meaning: Rahioli Lizard (after the Rahioli village near the discovery site)
| Diet | Carnivore |
| Height | 2.5m |
| Length | 6m |
| Weight | 1.5 tonnes |
| Environment | Land |
| Era | Cretaceous |
| Period | Late Cretaceous |
| Type | Theropod |
| Location | India |
Rahiolisaurus was a fearsome theropod dinosaur that prowled the ancient landscapes of India during the final chapter of the Cretaceous Period. Living between 72 and 66 million years ago, this predator was one of the last non-avian dinosaurs to walk the Earth before the great extinction event that ended the age of dinosaurs. Its fossils were discovered in the Lameta Formation in Gujarat, western India, providing crucial insights into the diversity of Indian dinosaurs.
This impressive theropod stood approximately 2.5 metres tall at the hip and measured around 6 metres in length, making it a formidable hunter in its ecosystem. Like other members of its family group, Rahiolisaurus was built for predation, with powerful legs for pursuit and sharp teeth designed for tearing flesh. The creature's robust build suggests it was well-adapted to taking down substantial prey in the semi-arid environments of Late Cretaceous India.
What makes Rahiolisaurus particularly significant is that its remains represent fossils from at least seven different individuals of varying ages, from juveniles to adults. This remarkable collection has allowed scientists to study how these theropods grew and developed throughout their lives. The discovery has also helped palaeontologists better understand the dinosaur communities that existed in the Indian subcontinent during the twilight of the Mesozoic Era.
What made Rahiolisaurus distinctive?
Rahiolisaurus possessed the typical abelisaurid features including a robust skull, powerful hindlimbs, and reduced forelimbs. The dinosaur's teeth were sharp and recurved, perfectly suited for its carnivorous lifestyle, whilst its muscular build indicated it was a powerful predator.
Behaviour
As a carnivorous theropod, Rahiolisaurus likely hunted other dinosaurs and animals in its environment, using its powerful jaws and sharp claws to capture prey. The discovery of multiple individuals together suggests these dinosaurs may have gathered at feeding sites or watering holes, though whether they hunted cooperatively remains uncertain.
Discovery
Rahiolisaurus was first described by Jeffrey Wilson and colleagues in 2010. The original fossils were discovered at Lameta Formation, Gujarat, India.
Rahiolisaurus FAQ
What did Rahiolisaurus eat?
Rahiolisaurus was a carnivore that fed on other dinosaurs and animals. Its sharp, recurved teeth were perfectly designed for tearing flesh, and its powerful build suggests it could take down substantial prey including herbivorous dinosaurs that shared its
Late Cretaceous Indian habitat.
How big was Rahiolisaurus?
Rahiolisaurus stood approximately 2.5 metres tall at the hip and measured around 6 metres in total length. It weighed an estimated 1.5 tonnes, making it a substantial predator, though not as large as some of the giant theropods from other parts of the world.
When did Rahiolisaurus live?
Rahiolisaurus lived during the
Late Cretaceous Period, specifically between 72.2 and 66 million years ago during the Maastrichtian stage. This makes it one of the last dinosaurs to exist before the mass extinction event that ended the age of dinosaurs.
Where was Rahiolisaurus found?
Rahiolisaurus was discovered in the Lameta Formation in the state of Gujarat, western India. The fossils were found near the village of Rahioli, after which the dinosaur was named. This region has proven to be an important source of
Late Cretaceous dinosaur fossils.
How do you pronounce Rahiolisaurus?
Rahiolisaurus is pronounced 'rah-hee-oh-ly-SORE-us', with the emphasis on the final syllable. The name combines 'Rahioli' (the village where it was found) with the Greek word 'saurus' meaning lizard.
What does Rahiolisaurus mean?
Rahiolisaurus means 'Rahioli Lizard', named after the village of Rahioli in Gujarat, India, near where the fossils were discovered. The species name 'gujaratensis' refers to the state of Gujarat where the discovery was made.
How fast could Rahiolisaurus run?
The running speed of Rahiolisaurus is not precisely known, but as a large theropod with powerful leg muscles, it was likely capable of reaching considerable speeds when pursuing prey or avoiding danger, possibly similar to other large predatory dinosaurs.
What type of dinosaur was Rahiolisaurus?
Rahiolisaurus was a theropod dinosaur, specifically a member of the Abelisauridae family. Theropods were bipedal, mostly carnivorous dinosaurs that included famous predators like
Tyrannosaurus rex, though abelisaurids were particularly common in the southern continents.
Was Rahiolisaurus related to birds?
Yes, as a theropod dinosaur, Rahiolisaurus was part of the same major group that gave rise to modern birds. However, Rahiolisaurus lived very late in the Cretaceous Period and represents a side branch of theropod evolution that did not survive the mass extinction 66 million years ago.
How many Rahiolisaurus fossils have been found?
The Rahiolisaurus fossils represent remains from at least seven different individuals of various ages, from juveniles to adults. This makes it one of the most complete abelisaurid discoveries from India and has provided valuable insights into how these dinosaurs grew and developed.
