Because brontosaurus never was real they accidentally put a camarasaurus head on an aptosaurus. it was later found that they made a mistake!!!
brontosaurus
Brontosaurus was discovered two years after Apatosaurus ajax. It was assigned to its own genus, but it was later found that Brontosaurus belonged to the same genus as Apatosaurus ajax. Thus, the name Brontosaurus is invalid, and now it is called Apatosaurus excelsus.
Brontosaurus was discovered by Othniel Charles Marsh in 1879. Two years before, however, he discovered Apatosaurus ajax. It turns out that Brontosaurus belonged to the same genus as Apatosaurus ajax, so the name Brontosaurus isn't valid. Brontosaurus is now called Apatosaurus excelsus.
Brontosaurus is an invalid name for Apatosaurus excelsus. Apatosaurus was an herbivorous dinosaur, so it got its food by searching for edible plants.
Brontosaurus is an invalid name for Apatosaurus excelsus. Apatosaurus had a very long, narrow, whip-like tail.
No, because the skeleton that was supposed to be a brontosaurus already had a name. I think it was Apatosaurus.
Brontosaurus was discovered by Othniel Charles Marsh in 1879. Two years before, however, he discovered Apatosaurus ajax. It turns out that Brontosaurus belonged to the same genus as Apatosaurus ajax, so the name Brontosaurus isn't valid. Brontosaurus is now called Apatosaurus excelsus.
In 1903, Elmer Riggs reclassified Brontosaurus. He realized that Brontosaurus was too similar to Apatosaurus ajax to belong to a separate genus. Thus, he reclassified Brontosaurus to Apatosaurus excelsus in 1903, and at that point the name Brontosaurus became dubious.
Brontosaurus is an invalid name for Apatosaurus excelsius. Apatosaurus grew to be 18 to 25 tons, or 36,000 to 50,000 lb.
Apatosaurus, once known as Brontosaurus.
Brontosaurus is now called Apatosaurus excelsus. Apatosaurus excelsus is one of the four species in the genus Apatosaurus.
The brontosaurus is now called "apatosaurus". The first name given to it was apatosaurus (in 1877), but when bones were later found of the same species by another person, he called it brontosaurus (in 1879). The first name takes precedence.