Paleontologists have described the oldest known member of Haidomyrmecinae — an extinct subfamily of ants that only lived during the Cretaceous period — preserved as a rock impression in the limestone of the Crato Formation in northeastern Brazil. Vulcanidris cratensis, holotype. Scale bar – 2 mm. Image credit: Lepeco et al., doi: 10.1016/j.cub.2025.03.023. Named Vulcanidris cratensis, the new ant species lived 113 million years ago...
