RARE: Oistoceras figulinum Fossil Ammonite – Lower Pliensbachian, Lower Jurassic, Waddington UK – Genuine + COA

Description

A rare and scientifically significant Oistoceras figulinum Fossil Ammonite, from the Lower Pliensbachian Stage of the Lower Jurassic, collected at Waddington, United Kingdom. This ammonite is an excellent representative of the genus Oistoceras, known for its elegant morphology and ribbing. The specimen shown in the photographs is the exact one you will receive and comes with a Certificate of Authenticity.

Fossil Type & Species:

• Type: Ammonite (extinct marine cephalopod)
• Species: Oistoceras figulinum
• Order: Ammonitida
• Superfamily: Eoderoceratoidea
• Family: Dactylioceratidae

Geological Context:

• Period: Jurassic
• Epoch/Stage: Lower Jurassic – Lower Pliensbachian (approx. 190.8 to 189 million years ago)
• Biozone: Figulinum Subzone within the Jamesoni Zone – an important index fossil horizon in the Lower Pliensbachian
• Formation: Lower Lias Group
• Depositional Environment: Shallow marine shelf with alternating marl and limestone beds, ideal for preserving ammonites

Locality:

• Region: Waddington, United Kingdom

Morphology & Features:

• Moderately evolute shell with broad umbilicus
• Fine, bifurcating ribs across the flanks continuing smoothly over the venter
• Graceful whorl section, typical of the genus Oistoceras
• Excellent shell preservation with diagnostic features visible

Scientific Notes:

• Oistoceras figulinum was first described by James Sowerby (1824), one of Britain’s most renowned early palaeontologists
• It is a key index species for the Lower Pliensbachian, widely used in European biostratigraphy

Notable Details:

• Rare British ammonite with excellent preservation
• 100% genuine and unrestored specimen
• Scale Reference: Each square or cube in the photo = 1cm. Please check the images for full specimen sizing

Authenticity & Guarantee: All of our fossils are 100% genuine, responsibly sourced, and professionally curated. Each specimen is supplied with a Certificate of Authenticity. The fossil you see is the exact one you will receive.

This Oistoceras figulinum ammonite is a rare, well-documented specimen from the Lower Jurassic of Britain – an excellent addition for collectors, researchers, or display.