Rare: 6″ stephanoceras humphriesianum fossil ammonite – middle bajocian, jurassic – burton bradstock, dorset coast, uk – coa

Description

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.

About Stephanoceras humphriesianum:

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.

Geological Information:

• Species: Stephanoceras humphriesianum
• Fossil Type: Ammonite
• Stage: Middle Bajocian (~170 million years ago)
• Formation: Inferior Oolite
• Location: Burton Bradstock, Dorset Coast, United Kingdom
• Depositional Environment: Shallow marine seas rich in ammonites and other marine life

Fossil Features:

✔ 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

Additional Information:

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!