Ilokelesia Facts
Pronunciation: ee-low-keh-LEE-see-ah
Name meaning: Named after the Mapuche word 'ilokel' meaning flesh or meat
| Diet | Carnivore |
| Height | 2.5m |
| Length | 7m |
| Weight | 1.5 tonnes |
| Environment | Land |
| Era | Cretaceous |
| Period | Late Cretaceous |
| Type | Theropod |
| Location | Argentina |
Ilokelesia was a fearsome theropod dinosaur that prowled the ancient landscapes of South America during the earliest Late Cretaceous period, approximately 100.5 million years ago. This powerful predator belonged to a group of dinosaurs known for their robust build and distinctive skull features, making it one of the earlier representatives of its lineage in South America.
Living in what is now Argentina's Neuquén Province, Ilokelesia inhabited a warm, semi-arid environment dotted with rivers and forests. At roughly 7 metres in length and standing about 2.5 metres tall at the hip, this theropod was a formidable hunter that likely preyed upon the various herbivorous dinosaurs sharing its ecosystem. Its strong, muscular legs would have made it a capable pursuit predator.
As a carnivore, Ilokelesia possessed sharp, serrated teeth perfectly designed for slicing through flesh and bone. Its powerful jaws and robust skull construction suggest it was well-adapted for delivering crushing bites to subdue its prey. The dinosaur's arms were likely small but muscular, typical of its group, while its long tail provided balance during high-speed chases.
Unfortunately, our knowledge of Ilokelesia remains somewhat limited, as it is known from only fragmentary skull and skeletal remains. However, these fossils have provided valuable insights into the early evolution and diversification of large theropod dinosaurs in South America during the Cretaceous period.
What made Ilokelesia distinctive?
Ilokelesia had a robust skull with powerful jaws filled with sharp, serrated teeth designed for tearing flesh. Its strong, muscular legs were built for pursuit hunting, while its relatively small arms were typical of large theropod predators.
Behaviour
Ilokelesia was likely an active pursuit predator that used its powerful legs to chase down prey across the ancient Argentine landscape. As a large theropod, it probably hunted alone or in small groups, using its strong jaws to deliver fatal bites to herbivorous dinosaurs.
Discovery
Ilokelesia was first described by Rodolfo Coria and Leonardo Salgado in 1998. The original fossils were discovered at Huincul Formation, Neuquén Province, Argentina.
Ilokelesia FAQ
What did Ilokelesia eat?
Ilokelesia was a carnivore that fed on other dinosaurs and animals. Its sharp, serrated teeth and powerful jaws were perfectly designed for tearing flesh and crushing bone, suggesting it hunted various herbivorous dinosaurs that shared its
Late Cretaceous environment in Argentina.
How big was Ilokelesia?
Ilokelesia was approximately 7 metres long and stood about 2.5 metres tall at the hip. It weighed an estimated 1.5 tonnes, making it a substantial predator, though not among the largest theropods. However, these size estimates are based on fragmentary remains, so the actual size may have varied.
When did Ilokelesia live?
Ilokelesia lived during the earliest part of the
Late Cretaceous period, approximately 100.5 million years ago. This makes it one of the earlier large theropod dinosaurs known from South America during this important period of dinosaur evolution.
Where was Ilokelesia found?
Ilokelesia was discovered in the Huincul Formation in Neuquén Province, Argentina. This fossil-rich formation has yielded numerous important dinosaur discoveries and represents ancient environments from the earliest
Late Cretaceous period in South America.
How do you pronounce Ilokelesia?
Ilokelesia is pronounced 'ee-low-keh-LEE-see-ah'. The name comes from the indigenous Mapuche language of Argentina, where 'ilokel' means flesh or meat, reflecting this dinosaur's carnivorous nature.
What does Ilokelesia mean?
Ilokelesia means 'flesh' or 'meat' in the Mapuche language, an indigenous language of Argentina. This name was chosen by the scientists who described it to reflect the dinosaur's carnivorous lifestyle and to honour the indigenous culture of the region where it was discovered.
How fast could Ilokelesia run?
The exact running speed of Ilokelesia is unknown due to the fragmentary nature of its remains. However, as a large theropod with powerful leg bones, it was likely capable of reaching considerable speeds when pursuing prey, possibly similar to other theropods of comparable size.
What type of dinosaur was Ilokelesia?
Ilokelesia was a theropod dinosaur, specifically belonging to the Abelisauridae family. Theropods were bipedal, primarily carnivorous dinosaurs that included famous predators like
Tyrannosaurus rex. Ilokelesia was a large, powerful predator adapted for hunting other dinosaurs in
Late Cretaceous Argentina.
Was Ilokelesia related to birds?
Yes, as a theropod dinosaur, Ilokelesia was distantly related to modern birds. All theropods, including Ilokelesia, share a common ancestor with birds. However, Ilokelesia lived on a different evolutionary branch and was not a direct ancestor of birds, but rather a specialized large predator.
How many Ilokelesia fossils have been found?
Only one specimen of Ilokelesia has been discovered and described. This single specimen consists of fragmentary elements of the skull and skeleton, which limits our detailed knowledge of this dinosaur. The discovery was made in the late 1990s and described by palaeontologists Rodolfo Coria and Leonardo Salgado in 1998.
