The speed at which spinosaurid dinosaur teeth were replaced accounts for their overabundance in Cretaceous sites

This has been confirmed in the article ‘New contributions to the skull anatomy of spinosaurid theropods: Baryonychinae maxilla from the Early Cretaceous of Igea (La Rioja, Spain)’ published in the journal Historical Biology by Iker Isasmendi (lead author) and Xavier Pereda of the UPV/EHU-University of the Basque Country, Pablo Navarro of the UR-University of La Rioja, Angélica Torices, director of the Chair of Palaeontology at the UR, plus other experts of the Complutense University of Madrid and the Palaeontological Visitors’ Centre of La Rioja.