Fun Facts about Tanycolagreus

Tanycolagreus was a swift, small predatory dinosaur that lived near the end of the Jurassic Period, about 152 million years ago, in what is now North America. A partial skeleton and a partially preserved cranium were discovered.

Tanycolagreus was discovered in 1995 at Bone Cabin Quarry West in Albany County, Wyoming, by a team from Western Paleontological Laboratories, Inc. In 1998, the find was classified as Coelurus fragilis and described in the literature as such. The rebuilt skeleton was shown, but additional study revealed that it belonged to a new species.

Tanycolagreus skeleton. (photo source: wikipedia)

However, after a further analysis of the material by American palaeontologists Kenneth Carpenter, Clifford Miles, and Karen Cloward, significant variations between the two species were revealed, and the new species Tanycolagreus topwilsoni was named and published.

1: Tanycolagreus quick facts:

Name: Tanycolagreus (Greek for “Long Limb Hunter”); pronounced tany-co-la-greus
When it lived: Late Jurassic, 153-150 million years ago
Type of dinosaur: Small Theropod
Location: USA
Habitat: Dry and arid regions.
Length/Weight: 3.3-4 meter/120kg
Diet: Carnivorous
Distinguishing Characteristics: A tall, rectangular head and short, light legs.
Named by: Carpenter et al. (2005)

2: How do you pronounce ‘Tanycolagreus’?

The name Tanycolagreus  should be pronounced “tany-co-la-greus.”

3: What does the name Tanycolagreus mean?

Ben Creisler proposed the etymology of the genus name Tanycolagreus, which is based on the longer forelimbs and hindlimbs compared to Coelurus.

The name Tanycolagreus translates to “long-legged hunter.” Their moniker was derived from their swift hunting abilities. The short hind limbs and the presence of three toes made this possible. The designated name honours George Eugene “Top” Wilson, the father of a philanthropist who provides financial assistance for the scientific research.

4: What Did Tanycolagreus Look Like?

Following the finding of the holotype, many Tanycolagreus skeletons comparable to the holotype were discovered in Wyoming near the Morrison formation. Carpenter devised the fundamental characteristics of the Tanycolagreus dinosaur following such a monumental discovery.

Tanycolagreus. (photo source: wikipedia)

Tanycolagreus topwilsoni is a medium-sized theropod that lived in the upper Jurassic. They possessed a long and extended head, a long and tapering torso, and short hind limbs. They measured approximately 3.3 to 4 metres in length, and their heads were fairly large and heavy. The top is the thickest portion of an adult Tanycolagreus topwilsoni.


Written by James

James has always been intrigued by dinosaurs, the universe, technology, and animals. With a Bachelor of Computer Science and years of writing expertise, he joined World Amazing Facts in 2021 as a staff writer.

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