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Apatosaurus excelsus existed from about 154 to 151 million years ago. This was during the Kimmeridgian and Tithonian stage of the Jurassic period. The Jurassic period was during the Mesozoic era.

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When did the brontosaurus dinosaur live?

Brontosaurus is actually an invalid name for Apatosaurus excelsus. Apatosaurus existed from 154 to 150 million years ago, which was during the Kimmeridgian and Tithonian stages of the Jurassic period of the Mesozoic era.


What is the era of a apatosaurus?

Late Jurassic 161-145 million years ago.


How long does an average apatosaurus live?

150 years


What species is an apatosaurus?

There are four accepted species of Apatosaurus. They are Apatosaurus ajax, Apatosaurus excelsus, Apatosaurus louisae, and Apatosaurus parvus.


What era did brachiosauruses live?

The Brachiosaurus was a sauropod dinosaur. The Brachiosaurus was found to live during the Cretaceous period which was over 150 million years ago. The remians of the Brachiosaurus were found in Colorado and Utah.


What dinosaur named the apatosaurus is a herbivore?

The apatosaurus is the apatosaurus which is an herbivore.


How many years ago did the apatosaurus live?

Apatosaurus lived between 154 and 150 million years ago. This was during the Kimmeridgian and Tithonian stages of the Jurassic period.


Was apatosaurus a reptile?

Apatosaurus was a sauropod dinosaur. Like all dinosaurs, Apatosaurus was a reptile.


What ate the apatosaurus?

Apatosaurus predatorsAllosaurusRaptorsPrehistoric Crocodiles


What did the apatosaurus evolve into?

The Apatosaurus evolved into a seagull


Is an apatosaurus a sauropod?

Yes, Apatosaurus is a sauropod.


What is an Apatosaurus?

An apatosaurus is a large sauropod dinosaur of the genus Apatosaurus, belonging to the late Jurassic period.