The largest known titanosaur (Dinosauria, Sauropoda) tooth and other isolated dental elements from the Serra da Galga Formation (Upper Cretaceous of Southeast Brazil)

Titanosaur sauropods are a common component of the Upper Cretaceous fauna of the Serra da Galga Formation, Triângulo Mineiro region, Minas Gerais, Brazil. Among these, three distinct tooth morphotypes are recognized and described here. One of the teeth represents the largest titanosaur tooth ever found, whereas others correspond to possible juveniles. This diversity of morphologies, sizes, and ontogenetic stages shows that the Serra da Galga environment supported a diverse titanosaur fauna.