One of the 15 million-year-old freshwater fish fossils. The stomach contents of the fish show that they fed predominantly on phantom midges. . | Credit: Salty Dingo 2020 Fossils of 15 million-year ...

But, when the fish were alive during the Miocene epoch, the region was a lush, temperate rainforest. Paleontologists stumbled upon several intact F. brocksi fossils while exploring a research site ...