This exceptional Douvilliceras ammonite from the Cretaceous period of Madagascar is a striking specimen, showcasing the unique and rare feature of spines on its juvenile shell. The spines, which appear in the early growth stages of the ammonite, add a fascinating dimension to the fossil, highlighting the evolutionary adaptations of this ancient creature. Douvilliceras, a genus of ammonite known for its spiral-shaped, intricately patterned shell, is an extraordinary find in the fossil world. The juvenile stage of this species is particularly captivating due to the presence of the sharp spines, which would have been a defensive mechanism to deter predators. As the ammonite grew, these spines would have gradually been replaced with smoother, more mature shell features. A perfect addition to any collection, this Douvilliceras ammonite embodies both the artistic beauty of nature and the scientific intrigue of ancient life, making it a captivating display piece and an important specimen in understanding the evolutionary story of ammonites. Ammonite is 5,3 cm.