Photo released on July 9, 2018 shows an investigator works on the extraction of the remains of a giant dinosaur -- "Ingenia prima" -- from the Balde de Leyes formation, near Marayes, San Juan province, Argentina. Giant dinosaurs lived on Earth much earlier than previously thought, according to a team of excavators in San Juan, who discovered the remains of a 200-million-year old species. (Photo/Agencies)
Photo released on July 9, 2018 shows an investigator works on the extraction of the remains of a giant dinosaur -- "Ingenia prima" -- from the Balde de Leyes formation, near Marayes, San Juan province, Argentina. Giant dinosaurs lived on Earth much earlier than previously thought, according to a team of excavators in San Juan, who discovered the remains of a 200-million-year old species. (Photo/Agencies)
Photo released on July 9, 2018 shows an investigator works on the extraction of the remains of a giant dinosaur -- "Ingenia prima" -- from the Balde de Leyes formation, near Marayes, San Juan province, Argentina. Giant dinosaurs lived on Earth much earlier than previously thought, according to a team of excavators in San Juan, who discovered the remains of a 200-million-year old species. (Photo/Agencies)
Photo released on July 9, 2018 shows an investigator works on the extraction of the remains of a giant dinosaur -- "Ingenia prima" -- from the Balde de Leyes formation, near Marayes, San Juan province, Argentina. Giant dinosaurs lived on Earth much earlier than previously thought, according to a team of excavators in San Juan, who discovered the remains of a 200-million-year old species. (Photo/Agencies)