> >

Anatotitan Items

Anatotitan News

anatotitan: herbivore dinosaur from the Cretaceous era

Anatotitan Facts

Pronunciation: an-AT-oh-tie-tan

Name meaning: Giant Duck

Diet	Herbivore
Height	4m
Length	12m
Weight	4 tonnes
Speed	40 km/h
Environment	Land
Era	Cretaceous
Period	Late Cretaceous
Type	Ornithopod
Location	North America

Anatotitan was a massive ornithopod dinosaur that lived during the final stages of the Cretaceous period, approximately 72 to 66 million years ago. This giant herbivore roamed the river plains and coastal lowlands of what is now western North America, particularly in areas that would become South Dakota, Wyoming, and Montana. As one of the largest duck-billed dinosaurs ever discovered, Anatotitan was truly impressive in scale.

This ornithopod possessed the characteristic flat, duck-like bill that gave hadrosaurs their common name. Unlike some of its crested relatives, Anatotitan had a relatively flat head without elaborate cranial ornamentation. Its powerful jaws contained hundreds of closely packed teeth arranged in dental batteries, perfectly designed for grinding tough plant material. The creature could move both on two legs when speed was needed and on all fours whilst feeding on low-growing vegetation.

Anatotitan's diet consisted entirely of plants, including ferns, conifers, and flowering plants that were becoming increasingly common during the Late Cretaceous. Its sophisticated chewing mechanism allowed it to process even the toughest plant fibres efficiently. The dinosaur's large size would have provided protection from most predators, though it shared its environment with fearsome hunters like Tyrannosaurus rex.

Today, many scientists consider Anatotitan to be the same species as Edmontosaurus annectens, representing one of the last great dinosaur species before the mass extinction event that ended the Mesozoic Era.

What made Anatotitan distinctive?

Anatotitan was characterised by its enormous size, flat duck-like bill, and lack of cranial crests. Its head was proportionally long and low, with a distinctive downward curve at the front of the snout, giving it an almost pelican-like profile.

Behaviour

Anatotitan likely lived in herds for protection and may have migrated seasonally in search of fresh vegetation. Evidence suggests these ornithopods could rear up on their hind legs to reach higher browse or to spot potential threats across the landscape.

Fun Facts About Anatotitan

Anatotitan copei was one of the largest duck-billed dinosaurs ever discovered, reaching lengths of up to 12 metres
Some Anatotitan specimens show evidence of healed bite marks from Tyrannosaurus rex, suggesting they occasionally survived predator attacks
The first Anatotitan skull discovered was so large that early palaeontologists initially thought it belonged to a completely different type of dinosaur
Anatotitan's jaw contained over 1,000 individual teeth arranged in complex grinding surfaces called dental batteries
Fossilised Anatotitan skin impressions reveal the dinosaur had a pebbly, leather-like hide similar to modern crocodiles

Anatotitan in Popular Culture

Anatotitan has appeared in various dinosaur documentaries and educational programmes, often featured as one of the last great herbivores of the Cretaceous period.

Scientific Classification

Phylum	Chordata
Class	Ornithischia
Family	Hadrosauridae
Genus	Anatotitan

Discovery

Anatotitan was first described by Charles M. Sternberg in 1942. The original fossils were discovered at Lance Formation, South Dakota, USA.

Anatotitan FAQ

What did Anatotitan eat?

Anatotitan was a herbivore that fed on a variety of Late Cretaceous plants including ferns, conifers, cycads, and early flowering plants. Its sophisticated dental batteries allowed it to efficiently grind tough plant material that other dinosaurs couldn't process.

How big was Anatotitan?

Anatotitan was enormous, measuring up to 12 metres in length and standing about 4 metres tall at the hip. It weighed approximately 4 tonnes, making it one of the largest duck-billed dinosaurs ever discovered.

When did Anatotitan live?

Anatotitan lived during the Late Cretaceous period, approximately 72 to 66 million years ago. This means it was one of the last dinosaur species to exist before the mass extinction event that ended the age of dinosaurs.

Where was Anatotitan found?

Anatotitan fossils have been discovered in North America, particularly in the Lance Formation of South Dakota, as well as formations in Wyoming and Montana. These areas were warm, humid coastal plains during the Late Cretaceous.

How do you pronounce Anatotitan?

Anatotitan is pronounced 'an-AT-oh-tie-tan', with emphasis on the second syllable. The name rolls off the tongue quite naturally once you break it down into its component parts.

What does Anatotitan mean?

Anatotitan means 'Giant Duck', referring to the dinosaur's impressive size and its distinctive duck-like bill. The name reflects both its enormous proportions and its relationship to other duck-billed dinosaurs.

How fast could Anatotitan run?

Anatotitan could likely reach speeds of up to 40 km/h when running on its powerful hind legs. This impressive speed would have been crucial for escaping from large predators like Tyrannosaurus rex.

What type of dinosaur was Anatotitan?

Anatotitan was an ornithopod dinosaur, specifically a member of the hadrosaur or duck-billed dinosaur family. These were large herbivorous dinosaurs known for their sophisticated teeth and ability to walk on both two and four legs.

Was Anatotitan related to birds?

As an ornithischian dinosaur, Anatotitan was not directly related to modern birds. Birds evolved from theropod dinosaurs, which belonged to a different major group called saurischians. However, all dinosaurs share common ancestry.

How many Anatotitan fossils have been found?

Several well-preserved Anatotitan specimens have been discovered, including nearly complete skeletons and skulls. However, many scientists now consider these fossils to represent the same species as Edmontosaurus annectens, making the exact count dependent on taxonomic interpretation.