Large Douvilleiceras Fossil Ammonite A Cretaceous Cephalopod Perfectly-Preserved Ribbed Spiral - Height: 342 mm - Width: 298 mm- 11700 g - (1)

Cretaceous - Large Douvilleiceras sp. specimen — This lot presents a monumental fossil ammonite specimen, belonging to the genus Douvilleiceras and coming from the rich Madagascar deposits. Dating to the Cretaceous period, about 110 million years ago, this fossil is not only a paleontological artifact but a true natural sculpture, whose beauty has been enhanced by careful partial polishing that reveals its warm colors and intricate internal structure. The specimen is distinguished by its massive shape and a well-defined logarithmic spiral. The shell, of an evolved type, also allows visibility of the innermost whorls, enabling appreciation of the organism’s growth at each stage. The most distinctive feature of the genus Douvilleiceras is its robust ribbing, here perfectly preserved, crossing the whorls and giving the fossil a powerful and dynamic look. The preparation has highlighted these details, polishing the more exposed surfaces and leaving a more natural finish in the deeper grooves, creating a suggestive tactile and visual contrast. The fossil’s color palette is a geological story. The dominant tones range from beige to ochre, up to warm amber and brown hues. The polishing has brought to light wonderful abstract patterns, the result of the mineralization process during which the original aragonite of the shell was replaced by calcite and other minerals. There are areas that are almost translucent alternating with more opaque zones and darker inclusions, evidence of the complex sedimentary history of the specimen. The smooth, shiny surface catches the light, enhancing the object’s three-dimensionality. Ammonites of the Douvilleiceras genus were marine cephalopods that thrived during the Albian stage of the Cretaceous. Their sturdy and ornate shell likely served as protection against predators and as a flotation device. Madagascar deposits are renowned worldwide for the exceptional preservation of these fossils, which allows studying their morphology in extraordinary detail. This specimen is a magnificent testament to marine life in a remotest era, a fragment of the ancient Tethys Ocean that has reached us. Thanks to its imposing size and undeniable aesthetic value, this fossil transcends pure scientific interest to become a prestigious decorative element. It is an ideal piece to enrich a natural history collection, decorate a professional study, a library, or a contemporary living room. Its sculptural presence evokes stories of lost worlds, making it a perfect Wunderkammer object, capable of stimulating curiosity and imagination. The combination of natural form, ancient history, and artisanal preparation makes it a piece of notable collectible and decorative interest. --- Technical details Name: Fossil Ammonite (Douvilleiceras sp.) Provenance: Madagascar Geologic Period: Cretaceous (Albian, about 113-100 million years ago) Dimensions: 342 x 298 x 123 mm Weight: 11700 g Conditions: Natural, complete specimen in excellent condition. Partially polished to enhance details and color. No restorations.