Pharmacotherapeutic Potentials of Spinosaurus Tooth Fossils: Discovering the Ancient Healer

Fossils are generally studied as records of ancient life, geological transformation, and evolutionary history. However, fossilized vertebrate hard tissues such as dinosaur teeth may also be viewed as ancient biomineral systems with potential relevance to pharmacology, biomaterials science, and geo-medicine. Among dinosaur fossils, Spinosaurus tooth fossils are especially compelling because they preserve a specialized predatory dental architecture and undergo extensive diagenetic transformation that converts the original tooth into a mineral-rich composite matrix. This review explores the pharmacotherapeutic potentials of Spinosaurus tooth fossils by integrating evidence from palaeontology, fossil biomineralization, geochemistry, oxidative stress biology, and anticancer pharmacology. The central question addressed is whether Spinosaurus tooth fossils can be interpreted not merely as paleontological relics but also as unconventional material systems with relevance to oxidative stress modulation, redox biology, and cancer-related research. The review discusses the biological significance of the original Spinosaurus tooth, the geochemical consequences of fossilization, and the possible pharmacological relevance of elements commonly associated with fossilized tooth matrices, including calcium, phosphorus, iron, manganese, magnesium, silicon, and carbonaceous residues. It further examines how such constituents may influence reactive oxygen species generation, mitochondrial stress, apoptosis-related pathways, and mineral-mediated cytotoxicity in cancer cells. The article also considers the role of extractable organic constituents as possible contributors to fossil-associated bioactivity and proposes the concept of fossil-informed paleo-pharmacology, in which ancient biomineral systems are explored as templates for biomedical inspiration, mechanistic investigation, and future biomaterial design. Although the evidence remains preliminary and requires rigorous validation through chemical, cellular, and toxicological studies, Spinosaurus tooth fossils may represent a novel class of exploratory biomineral systems relevant to oxidative stress-centered anticancer research.