Modern flamingoes employ filter feeding and their feces is, as a result, rich in remains of microscopically small aquatic prey. Very similar contents are described from more than 150-million-year-old pterosaur droppings, according to a recent paper in PeerJ. This represents the first direct evidence of filter-feeding in Late Jurassic pterosaurs and demonstrates that their diet and feeding environments were similar to those of modern flamingoes.
Click here for original story, Filter-feeding pterosaurs were the flamingos of the Late Jurassic
Source: Phys.org