What geological feature in Argentina confines the known community surrounding Amargasaurus?

Answer

The Amarga Group in the Neuquén Basin

Determining the neighbors of Amargasaurus requires focusing on fauna recovered from the Amarga Group deposits located in the Neuquén Basin of Argentina.

What geological feature in Argentina confines the known community surrounding Amargasaurus?
speciespaleontologydinosaurAmargasauruscoexistence