Saurornitholestes Facts
Pronunciation: SORE-or-NITH-oh-LESS-teez
Name meaning: Lizard Bird Thief
| Diet | Carnivore |
| Height | 0.6m |
| Length | 1.8m |
| Weight | 7 kg |
| Speed | 40 km/h |
| Environment | Land |
| Era | Cretaceous |
| Period | Late Cretaceous |
| Type | Theropod |
| Location | Canada And United States |
Saurornitholestes was a fierce, small theropod that prowled the forests and plains of western North America during the Late Cretaceous period, between 83.6 and 72.2 million years ago. This agile predator was perfectly built for hunting, standing about 60 centimetres tall at the hip and measuring roughly 1.8 metres from snout to tail tip.
Like other members of its group, Saurornitholestes possessed the characteristic sickle-shaped killing claw on each foot, which it likely used to slash at prey or maintain grip whilst attacking. Its long, curved teeth were ideal for gripping and tearing flesh, whilst its powerful legs and lightweight build made it an exceptionally fast runner, capable of reaching speeds up to 40 kilometres per hour.
Two valid species are currently recognised: S. langstoni, the original species discovered in Alberta, and S. sullivani, named from remains found in New Mexico in 2015. Fossil evidence suggests these theropods were active hunters that may have worked together to bring down prey larger than themselves, using their superior speed and deadly claws to overwhelm victims.
Saurornitholestes lived alongside other famous dinosaurs including Triceratops and various hadrosaurs, which may have formed part of its diet. Its relatively large brain compared to body size suggests it was an intelligent predator, capable of complex hunting strategies.
What made Saurornitholestes distinctive?
Saurornitholestes was distinguished by its large, sickle-shaped killing claw on each hind foot, long curved teeth, and relatively large brain case indicating high intelligence. Its lightweight build and long legs marked it as a swift pursuit predator.
Behaviour
Saurornitholestes was likely an active pack hunter, using coordinated attacks to bring down prey much larger than itself. Evidence suggests it was primarily active during daylight hours and may have used its intelligence to set ambushes for unsuspecting herbivorous dinosaurs.
Discovery
Saurornitholestes was first described by Hans-Dieter Sues in 1978. The original fossils were discovered at Oldman Formation, Alberta, Canada.
Saurornitholestes FAQ
What did Saurornitholestes eat?
Saurornitholestes was a carnivore that hunted other dinosaurs, likely targeting smaller herbivorous species but possibly working in groups to bring down much larger prey like hadrosaurs. Its sharp, curved teeth were perfect for gripping and tearing flesh.
How big was Saurornitholestes?
Saurornitholestes was about 60 centimetres tall at the hip, 1.8 metres long from nose to tail, and weighed approximately 7 kilograms - roughly the size of a medium to large dog but much more deadly.
When did Saurornitholestes live?
Saurornitholestes lived during the
Late Cretaceous period, between 83.6 and 72.2 million years ago, making it one of the later dinosaur species before the mass extinction event.
Where was Saurornitholestes found?
Fossils of Saurornitholestes have been discovered in Canada and the United States, specifically in Alberta's Oldman Formation and in New Mexico, showing this predator had a wide geographical range across western North America.
How do you pronounce Saurornitholestes?
Saurornitholestes is pronounced 'SORE-or-NITH-oh-LESS-teez'. The name can be tricky, but breaking it into four parts - Saur-ornith-ol-estes - makes it easier to say.
What does Saurornitholestes mean?
Saurornitholestes means 'Lizard Bird Thief' in Greek. This name reflects both its reptilian nature and its bird-like characteristics, as well as its predatory lifestyle of 'stealing' or hunting other creatures.
How fast could Saurornitholestes run?
Based on its leg proportions and lightweight build, scientists estimate Saurornitholestes could reach speeds of up to 40 kilometres per hour, making it one of the fastest dinosaurs of its time and an effective pursuit predator.
What type of dinosaur was Saurornitholestes?
Saurornitholestes was a theropod dinosaur, specifically a member of the Dromaeosauridae family. These were small to medium-sized carnivorous dinosaurs known for their intelligence, speed, and distinctive sickle claws.
Was Saurornitholestes related to birds?
Yes, as a theropod dinosaur, Saurornitholestes was closely related to modern birds. It shared many bird-like features including hollow bones, a similar hip structure, and may have even had primitive feathers, though this hasn't been definitively proven from fossil evidence.
How many Saurornitholestes fossils have been found?
Relatively few complete fossils of Saurornitholestes have been discovered, which is typical for small theropod dinosaurs. Most specimens consist of fragmentary remains including teeth, claws, and partial skeletons from both Canadian and American fossil sites.
