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Epichirostenotes

Say it: EP-ee-KYE-roh-STEN-oh-teez

Name means: “above Chirostenotes, because it lived after the latter genus”1

Ate: A bit of everythingOdd feathered dinosLate Cretaceous

Epichirostenotes was a bird-like dinosaur that lived about 72 million years ago in what is now Alberta, Canada. It had a toothless beak and probably ate both plants and small animals. This dinosaur was an oviraptorosaur, a group known for their fancy feathers and strange skulls.1 4

Lived

84 to 72 million years ago4

Late Cretaceous

Fossils found in

Alberta, Canada (Horseshoe Canyon Formation)1 4

Food

A bit of everything4 2

Length

3.2 m3

largest known specimen

Weight

145 kg3

largest known specimen

When did it live?

Triassic

Jurassic

Cretaceous

252 million years ago20114566, the asteroid

How big was it?

How long was it?

How heavy was it?

as heavy as 5 big dogs

as long as 3 dogs nose to tailas long as 18 bananas end to endas heavy as 29 watermelons

How big was Epichirostenotes compared to YOU?

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cool stuff

Fun facts

Epichirostenotes is known from an incomplete skeleton found in 1923 in the Horseshoe Canyon Formation of Alberta.1

Its inner ear had a twisted common crus and an expanded anterior semicircular canal, which may have helped with balance.1

The name Epichirostenotes means 'above Chirostenotes' because it lived later than its relative Chirostenotes.1

This dinosaur belongs to the family Caenagnathidae, which are oviraptorosaurs that had toothless beaks and often crests on their heads.1 4

Epichirostenotes lived about 72 million years ago during the Late Cretaceous period.1

The only species in this genus is Epichirostenotes curriei, named in 2011 by Sullivan, Jasinski, and van Tomme.1 4

AI-made picture of Epichirostenotes — An AI-made picture of how Epichirostenotes might have looked, made by a computer from what scientists know. It is a guess: the real animal may have looked different, and nobody knows its true colours.

you asked

Most asked questions about Epichirostenotes

?What did Epichirostenotes eat?

It was an omnivore, meaning it ate both plants and small animals.2 4

?How big was Epichirostenotes?

It was a small dinosaur, roughly 1 to 3 metres long (about 3 to 10 feet).4

?Did Epichirostenotes have feathers?

Yes, it was an oviraptorosaur, a group known for having fancy feathers.1

?When did Epichirostenotes live?

It lived about 72 million years ago, during the Late Cretaceous period.1

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For dino experts

Scientific name: Epichirostenotes
Named by: Sullivan et al. 20114
Group: Odd feathered dinos
Family / clade: Caenagnathidae4
Classification: Theropoda > Oviraptorosauria4
Age of the rocks: 84 to 72 million years (Campanian)4
Rock formations: Horseshoe Canyon4
Countries: Canada4
Fossil records: 1 in the Paleobiology Database4
Discovery: The first skeleton of Epichirostenotes was found in 1923 in Alberta, Canada. It was originally thought to be a different dinosaur called Chirostenotes pergracilis, but in 2011 scientists Sullivan, Jasinski, and van Tomme gave it its own name, Epichirostenotes curriei.1
Still debated: Scientists are not sure exactly how big Epichirostenotes was, because only a partial skeleton has been found.1

Where the facts come from

Epichirostenotes (en.wikipedia.org)
Epichirostenotes Sullivan et al. 2011 - Encyclopedia of Life (eol.org)
Epichirostenotes curriei | Dinosaur Database by DinoAnimals.com (dinoanimals.com)
Epichirostenotes in The Paleobiology Database (CC BY 4.0): age, places, rock formations, classification.

Every fact on this page has a number that points to its source. If we got something wrong, sorry, we are dino fans, not a science journal. Tell us at [email protected] and we will fix it.

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