Fossilized feces reveal Early Cretaceous aquatic vertebrate diversity
(PHYSorg.com Archaeology & Fossils)

Ancient fossils faeces found in central Spain belonged to fish-eating carnivores from the Early Cretaceous, according to a study published on May 23, 2018 in the open-access journal PLOS ONE by Sandra Barrios de Pedro from the Universidad Autónoma de Madrid, Spain, and colleagues.