Hello, there! Just some advice:
When we use other people's work and words, we should put them in quotation marks and mention the source, otherwise it is considered plagiarism
I found your text in this link:
https://books.google.gr/books?id=9KNEGXBg_VwC&pg=PT787&lpg=PT787&dq=%22Argentinosaurus+is+a+genus+of+titanosaur+sauropod+dinosaur+first+discovered+by+Guillermo+Heredia+in+Argentina.+The%22&source=bl&ots=OuYahn8Tf4&sig=QQ7v_B5K8DQXOXvRGuHKiWQF9nE&hl=el&sa=X&ved=0ahUKEwjTremN5e7XAhUGMJoKHRvRBqcQ6AEIPDAI#v=onepage&q=%22Argentinosaurus%20is%20a%20genus%20of%20titanosaur%20sauropod%20dinosaur%20first%20discovered%20by%20Guillermo%20Heredia%20in%20Argentina.%20The%22&f=false