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Apatosaurus fossils date to between 154 and 150 million years ago. That means they existed for about 4 million years.

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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.


When did apatosaurus appear?

The youngest known fossils of Apatosaurus date to 150 million years ago. Thus, Apatosaurus probably died out around 150 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.


When did the apatosaurus live?

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


What time period did apatosaurus lived?

Brontosaurus is an invalid name for Apatosaurus excelsus. Apatosaurus excelsus fossils date to between 154 and 151 million years ago. This was during the Kimmeridgian and Tithonian stages of the Jurassic period.


When did the brontosaurus roam the earth?

Brontosaurus is an invalid name for Apatosaurus excelsus. Apatosaurus excelsus existed from about 154 to 151 million years ago, during the Kimmeridgian and Tithonian stage of the Jurassic period.


What dinosaur named the apatosaurus is a herbivore?

The apatosaurus is the apatosaurus which is an herbivore.


In which geologic period were apatosaurus found in?

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


What period did the apatosaurus lived?

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


How many predators does a brontosaurus have?

Brontosaurus is an invalid name for Apatosaurus excelsus. Because they were so large, the only predator of adult Apatosaurus would be Allosaurus, if they had any predators. Young Apatosaurus had many predators, however, including Ornitholestes and Ceratosaurus.


What happpend to the Apatosaurus?

Apatosaurus fossils date to between 154 and 150 million years ago. After that, they disappear from the fossil record, so it is safe to say they probably died out around 150 million years ago.