Some of the first dinosaurs may have lived and hunted on the largest delta plain ever discovered, which was 10 times the size of the Amazon river delta Source: https://www.newscientist.com/article/2197767-weve-discovered-a-massive-dinosaur-era-river-delta-under-the-sea/?utm_campaign=RSS%7CNSNS&utm_source=NSNS&utm_medium=RSS&utm_content=home