Fossil Left Mandible of Extinct Malagasy Hippopotamus – Madagascar This fossil represents the left portion of a lower jaw belonging to one of Madagascar’s extinct hippopotamus species, likely Hippopotamus lemerlei or a closely related form. These insular hippos are a well-known example of dwarfism within Quaternary island fauna. The specimen preserves a solid section of the mandible along with two original molars, both clearly exposed. The teeth show well-defined enamel structure and characteristic occlusal patterns, offering a direct view of the animal’s feeding adaptations. The contrast between the lighter enamel and darker infilling enhances the visibility of the dental morphology. The surrounding bone retains a natural, porous texture, with areas of wear and breakage consistent with fossilization processes. Portions of the jaw are incomplete, contributing to an authentic, unaltered field appearance rather than a reconstructed presentation. Overall, the piece combines anatomical clarity with a raw geological character, making it particularly appealing for collectors who appreciate genuine, minimally prepared fossils. A distinctive example of Madagascar’s extinct megafauna, suitable for fossil collections, study pieces, or natural history displays.