Description
A rare and well-preserved specimen of Lytoceras fossil ammonite, excavated from the renowned Green Ammonite Beds of the Lower Lias at Golden Cap, Seatown, part of the world-famous Jurassic Coast in Dorset, UK. This particular fossil was discovered by our expert fossil team members Alister and Alison on 03 May 2025, and has been expertly cleaned, prepped, and treated by Alison.
Lytoceras is a genus within the family Lytoceratidae, known for its evolute coiling, smooth flanks, and highly complex suture patterns. Unlike many contemporaneous ammonites, Lytoceras often lacks prominent ribbing, instead displaying a sleek shell structure with intricate internal architecture.
Fossil Type: Ammonite (extinct marine cephalopod)
Genus: Lytoceras
Geological Age: Lower Jurassic – Sinemurian to Toarcian Stage (specific zone unconfirmed)
Formation: Lower Lias Group – Green Ammonite Beds
Depositional Environment: These ammonites were preserved in calm, offshore marine conditions rich in fine silts and clays. The lack of oxygen on the sea floor contributed to the superb fossil preservation characteristic of the Green Ammonite Beds.
Morphological Features:
- Evolute shell with all whorls visible
- Smooth shell surface with minimal or absent ribbing
- Intricate lobed and frilled suture lines
- Wide umbilicus and gently rounded venter
Notable:
- Rare example of the elegant Lytoceratidae ammonite
- From the iconic Jurassic Coast World Heritage Site
- Discovered and prepared by our own team, with full provenance
- The specimen shown in the photo is the exact one for sale
Authenticity: All of our fossils are 100% genuine natural specimens and come with a Certificate of Authenticity. Please refer to the included image for accurate sizing – the scale cube equals 1cm.
This Lytoceras ammonite from Golden Cap is a striking, scientifically valuable specimen and a superb representation of Early Jurassic marine life, perfect for any fossil enthusiast or collector.
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