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

Spinosaurid dinosaurs were able to develop up to three generations of teeth at the same time, a high replacement rate that explains why so many teeth of this type have been found 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 jo… [+3457 chars]

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