This listing features a rare and well-preserved 6-inch Stephanoceras humphriesianum ammonite fossil from the Middle Bajocian stage of the Jurassic period (~170 million years ago). This beautiful ammonite was discovered in the Burton Bradstock region of the Dorset Coast, UK, an area famous for its Jurassic marine fossils.
Stephanoceras humphriesianum is a highly sought-after ammonite species, notable for its boldly ribbed shell, intricate suture patterns, and robust whorls. It belonged to the family Stephanoceratidae and was a fast-moving, nektonic predator that thrived in the warm Jurassic seas. These ammonites likely had tentacle-like arms for catching prey, similar to modern cephalopods such as squid and nautiluses.
✔ Exceptional preservation of ammonite shell with prominent ribbing
✔ Classic specimen from the renowned Dorset Jurassic Coast
✔ Highly detailed suture lines and shell morphology
✔ Middle Jurassic ammonite from the famous Inferior Oolite formation
✔ A rare and sought-after species for collectors and researchers
All fossils are 100% genuine specimens and come with a Certificate of Authenticity. Scale Rule / Cube = 1cm – Please refer to the photos for accurate sizing.
This Stephanoceras humphriesianum fossil ammonite is a museum-quality specimen and a must-have for serious fossil collectors, palaeontologists, and ammonite enthusiasts. A fantastic opportunity to own a rare Jurassic ammonite from the iconic Dorset Coast!