Researchers identify pterosaur diet from 113-million-year fossil (opens in new tab)

Researchers studying a 113-million-year-old pterosaur wing bone from northeastern Brazil said it preserved rare soft-tissue traces, organic molecules and chemical signals linked to diet, according to a study published in iScience. The fossil, a hollow wing phalanx from the Romualdo Formation in the Araripe Basin, was encased in a limestone or carbonate concretion that preserved it in three dimensions rather than flattening it under sediment pressure. The team used high-resolution CT scanning,...