This extra-large Perisphinctes ammonite dates to the Jurassic period, approximately 150 million years ago, and represents a striking example of an extinct cephalopod that once thrived in warm, shallow seas.Known for its ribbed, plani-spiral shell, this specimen shows sharply defined whorls and natural mineralisation, highlighting the intricate growth patterns that mark each stage of its development. Its scale and symmetry distinguish it as a rare and visually impressive piece, seldom found in such complete form. Recovered from fossil-rich limestone beds in Madagascar, the ammonite has been expertly prepared to reveal its full form, offering both scientific interest and a uniquely sculptural presence shaped by deep time.Specimen Dimensions: 370 mm h x 330mm wTotal Dimensions: 550mm h x 350mm w