Brasilestes stardusti lived around 70 million years ago and was named after Ziggy Stardust, the singer's iconic persona. Description was based on a fossilized tooth. It's the 1st indication that placental mammals and dinosaurs co-existed in South America. For scientists, fossil features showed similarities with another pre-historic mammal found in India, suggesting both shared a common ancestral native from the Gondwana supercontinent.