Apatosaurus

Scientific classification
Kingdom Information
Kingdom |  Animalia
Phylum Information
Phylum |  Chordata
Class Information
Class |  Sauropsida
Order Information
Superorder |  Dinosauria
Order |  Saurischia
Sub-order |  Sauropodomorpha
Infraorder |  Sauropoda
Family Information
Family |  Diplodocidae
Genus Information
Genus |  Apatosaurus
Species Information
Species |  A. ajax
A. excelsus
A. louisae
Synonyms |  Brontosaurus
Population statistics
Conservation status | Extinct
Apatosaurus (Greek: ἀπατηλός apatelos, and σαῦρος sauros; "deceptive lizard") refers to three species of dinosaur originally discovered in the 1870s in the western United States. In 1903, a similar dinosaur named Brontosaurus was thought to have been the same species as Apatosaurus and was thus called Apatosaurus for over a century. Recent studies show, however, that both were actually separate species all along; Apatosaurus had a lower and wider neck than Brontosaurus.[1]

1. ↑ https://www.scientificamerican.com/article/the-brontosaurus-is-back1/