Psuedostro was a pterosaur, a flying reptile, that was a filter feeder. It is shown here with a pinkish color; it is thought that they may have turned pink, like a flamingo, due to the bacteria they consume.
Prehistoric Reptiles: Flying Reptiles
Developmental Growth Patterns of the filter-feeding pterosaurs, Pterodaustro guiñazui
Pterosaurs - The Flying Reptiles
Top 10 Standout Pterosaurs (#5)
