Double dactylioceras ammonite fossil – whitby, runswick bay, north yorkshire – upper lias, lower jurassic – alice purnell collection

Description

This stunning fossil features a DOUBLE ammonite pairing of Dactylioceras specimens, preserved side by side in beautiful natural relief. Discovered in the renowned fossil beds of Runswick Bay, near Whitby, North Yorkshire, UK, this piece hails from the Upper Lias (Whitby Mudstone Formation) of the Lower Jurassic, dating back around 183–189 million years.

Dactylioceras is one of the most iconic and sought-after ammonite genera from the Lower Jurassic period, known for its regularly ribbed, disc-shaped shell and fine details. These cephalopods once thrived in the marine environments of what is now Northern England and are emblematic of the region’s rich fossil heritage.

This double ammonite fossil is part of the prestigious Alice Purnell Collection—a curated archive of scientifically significant and visually striking specimens. Expertly cleaned and prepared to showcase both ammonites in their full splendour, this piece offers incredible display value while retaining scientific integrity.

The Whitby Mudstone Formation, part of the Blue Lias Group, was deposited in a low-oxygen marine basin, creating ideal conditions for the preservation of detailed ammonite fossils. The dark shale and limestone matrix beautifully contrasts with the pale calcified fossil, enhancing its aesthetic and collector appeal.

Item Details:

• Genus: Dactylioceras
• Type: Double Ammonite Fossil
• Geological Period: Lower Jurassic (Toarcian Stage)
• Formation: Whitby Mudstone Formation (Upper Lias)
• Location: Runswick Bay, Whitby, North Yorkshire, UK
• Collection: Alice Purnell Collection
• Preparation: Professionally cleaned and prepped
• Size: See 1cm scale cube in photo
• Authenticity: 100% Genuine – Certificate of Authenticity Included

ACTUAL AS SEEN:

You will receive the exact specimen shown in the photo. Each fossil is hand-selected and photographed individually for accuracy. While natural variations in colour may occur depending on lighting and display devices, the photos provide a true representation of the item. Once this specimen is sold, the listing will be updated with a new piece and corresponding images.

Own a genuine piece of Jurassic Britain – Professionally prepared – Backed by a Certificate of Authenticity – From the renowned Alice Purnell Collection