Hecticoceras Fossil Ammonite, Callovian, Jurassic: Sakatara, Madagascar – 100% Genuine with Certificate of Authenticity

Description This Hecticoceras fossil ammonite is an exceptional specimen from the Callovian Stage of the Jurassic Period, discovered in Sakatara, Madagascar. The Callovian, part of the Middle Jurassic, is known for its rich and diverse ammonite fauna, and Hecticoceras is one of the more fascinating species due to its distinctive shell features. This fossil represents a rare and beautiful example of Jurassic marine life from Madagascar, a region known for its significant fossil deposits. Geological Information: Geological Stage: Callovian, Jurassic (Approximately 166 to 161 million years ago) Depositional Environment: The Callovian Stage was characterized by warm, shallow seas that covered much of the Earth, including Madagascar. These seas provided ideal conditions for the flourishing of ammonites, including Hecticoceras. The fossil was preserved in sedimentary deposits formed in these ancient marine environments, where the ammonites lived and thrived. Biozone: This fossil comes from a Callovian biozone, a period marked by significant ammonite diversity. It was a time when ammonites played a key role in marine ecosystems. Fossil Features: Family: Hecticoceratidae Super Family: Hecticoceratoidea Order: Ammonitida Morphology: The Hecticoceras ammonite features a coiled, evolute shell with fine ribbing. Its distinctive shape includes well-defined, prominent ribs that make it visually striking. The ammonite’s flattened whorl and elegant, smooth curvature reflect the species’ adaptation to its marine environment. The ribbing and shell structure are key features for identifying this particular ammonite species. Notable Details: This fossil is 100% GENUINE and comes with a Certificate of Authenticity, ensuring its legitimacy and value. The specimen has been carefully selected for its quality and preservation. The photograph provided shows the actual specimen you will receive, ensuring transparency in your purchase. Scale Rule: The scale rule squares/cube shown in the photo represents 1cm, allowing you to accurately gauge the size of the fossil. Full sizing details are provided in the photograph. Condition: This Hecticoceras Fossil Ammonite is in excellent condition, displaying clear features such as its ribbed shell and flattened whorl. The fossil has been cleaned and treated for display, making it an outstanding specimen for collectors or anyone interested in Jurassic ammonites.