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Overview of Harpymimus Dinosaur

Harpymimus is an extinct genus of ornithomimid theropod dinosaur that lived in what is now Mongolia, during the Early Cretaceous Period. This dinosaur was a small, bipedal omnivore, and was likely fast on its feet. Its name means “siren mimic” in Greek and it received this interesting title because its long, blade-like arms resembled those of a siren. It is the first formally named ornithomimid.

Characteristics and Description

Harpyimimus was about 3 m (9.8 ft) long and weighed in at around 80 kilograms (176 lbs), with a long, deep-set head and a flat, smooth snout. Its mouth was lined with interlocking peg-like teeth that it used for gripping and gripping small prey like insects and small lizards. Its eyes were set on the sides of its head, giving it good binocular vision. Its long, blade-like arms ended in long, slim hands that were covered in long hooked claws. Its hind limbs were long and slender, with large, flat feet that were perfect for running. Its tail was long and broad, and ended in a fan-shaped tip.

Discovery and History

Harpymimus was first discovered in Russia in the early 20th century. Its fossil remains were found in Mongolia in the early 2000s. Unlike most of the fossilized specimens that had been found before, these fossils were almost completely intact. This allowed scientists to gain a better understanding of what this dinosaur looked like in life and gain valuable insights about its habits and lifestyle.

The fossil remains have since been studied and analyzed by paleontologists from all around the world. The fossil record indicates that Harpymimus lived in the Early Cretaceous period, approximately 125 million years ago. Over time, more and more fossil remains have been discovered in Mongolia, providing more details about this fascinating dinosaur.

Harpymimus two

Behavior and Diet

Harpymimus was a small, agile theropod. We can infer that it was able to run quickly in order to catch its prey, thanks to its long, slender legs and large feet. It is likely that it had an omnivorous diet, consisting of both plants and small animals. Its long, blade-like arms were likely used to grip its prey or to fight off predators.


Harpymimus is an intriguing dinosaur that has provided paleontologists with valuable insights into the lives of ancient theropods. This small dinosaur was likely able to move quickly on its long, slender legs and its sharp, hooked claws were likely used for gripping and gripping small animals. Thanks to the numerous fossil remains found in Mongolia, we now have a better understanding of what this dinosaur looked like and how it moved and behaved.

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