Abstract
Predator-prey interactions have played a pivotal role in the evolutionary history of both predators and prey. Nevertheless, due to spatiotemporal limitations in fossilization, evidence of such interactions is rarely preserved in the fossil record. This report documents the predatory activity of a clubionid sac spider (Araneae: Clubionidae) on an odorous ant (Formicidae: Dolichoderinae: Azteca) preserved in Mexican amber. The fossil material comes from the upper strata of the Simojovel Formation located in Chiapas, Mexico. Its recent dating places it within the temporal confines of the late Oligocene and early Miocene, ca. 24 Mya. This is a direct evidence of spider trapping and feeding behaviour resembling modern habits found in the geological past. The predator-prey interaction in the fossil record provides compelling evidence of biological diversity regarding taxonomic composition and spatial heterogeneity in a tropical and subtropical environment in which these species coexisted.