Apatosaurus fossils come from the Morrison Formation of western North America and date to between 154 and 150 million years ago. At that time, the area was a semi-arid subtropical plain with distinct wet and dry seasons. Near rivers, there were forests of conifers, cycads, ginkgoes, ferns, and horsetails. Further from the rivers there were open areas covered in ferns with scattered trees.
Apatosaurus fossils have been found in Wyoming, Colorado, Oklahoma, and Utah. The rocks their fossils are excavated from date to between 154 and 150 million years. At that time they probably roamed across what is now the western United States.
150 years
There are four accepted species of Apatosaurus. They are Apatosaurus ajax, Apatosaurus excelsus, Apatosaurus louisae, and Apatosaurus parvus.
The apatosaurus is the apatosaurus which is an herbivore.
Apatosaurus lived between 154 and 150 million years ago. This was during the Kimmeridgian and Tithonian stages of the Jurassic period.
Apatosaurus was a sauropod dinosaur. Like all dinosaurs, Apatosaurus was a reptile.
The Apatosaurus evolved into a seagull
Yes, Apatosaurus is a sauropod.
Apatosaurus predatorsAllosaurusRaptorsPrehistoric Crocodiles
An apatosaurus is a large sauropod dinosaur of the genus Apatosaurus, belonging to the late Jurassic period.
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.
Apatosaurus lived between 154 and 150 million years ago. That was during the Kimmeridgian and Tithonian stages of the Jurassic period. In short, the answers is yes.
Apatosaurus was an herbivorous diplodocidsauropod. There are three accepted species Apatosaurus ajax, Apatosaurus louisae, and Apatosaurusparvus. Brontosaurus execelcus was first though to be its own genus, than it was moved to Apatosaurus for a while, but paleontologists including Robert T. Bakker relized that several differences in the skull, means that Brontosaurus is once again a valid genus