CONTEXT:

• A site containing the 220-million-year-old fossilised remains of nearly a dozen dinosaurs has been discovered in western Argentina.
• There are almost ten different individuals, it’s a mass of bones, there’s practically no sediment.
• This discovery is doubly important because there are at least seven or eight individuals of dicynodonts, the ancestors of mammals, the size of an ox.

BACKGROUND

• In San Juan province, western Argentina,scientists from University of San Juan have been discovered a site containing fossils of nearly a dozen dinosaurs.It is 220 million year old and belonging to an unknown era.
• They were found at the Ischigualasto National Park.
• The fossils was laid as “bed of bones” and discovered in September 2018.