The speed at which spinosaur dinosaur teeth were replaced explains their overabundance at Cretaceous sites
Image: Reconstruction of the skull of a spinosaur dinosaur. Color in the spot where the fossil should be. Scale: 25cm. outlook more Photo credit: Erik Isasmendi. UPV/EHU. This was confirmed in the article “New contributions to the cranial anatomy of spinosaur theropods: Baryonychinae maxilla from the Early Cretaceous of Igea (La Rioja, Spain)” published in …