Invite 110 million years of natural history into your space with this striking “thanatocoenosis” from the Cretaceous beds of Mahajanga, Madagascar. A true collector’s piece, the sculpted matrix displays a dramatic congregation of polished ammonites frozen in time:

What makes this piece exceptional

• Genuine thanatocoenosis – multiple ammonites that settled together on the seafloor, later lithified as one inseparable tableau.

• Gloss-polished façade on the largest shell reveals honey-amber aragonite and intricate suture patterns—nature’s own filigree—while leaving portions of the rugged matrix untouched for raw contrast.

• Rainbow iridescence flashes across smaller ammonites where nacreous layers remain, lending subtle opal-like greens, violets and pinks under direct light.

• Natural sculptural form stands upright without a base, making it an effortless focal point for desks, shelves or studio pedestals.

• Responsibly sourced from licensed Malagasy quarries with hand finishing carried out by local artisans.

Ideal for

• Show-stopping home or office décor

• Museum or educational displays on paleo-ecology and mass mortality events

• A distinctive gift for fossil enthusiasts, geologists or anyone who loves statement pieces rooted in deep time

Because every fossil is unique, you will receive the exact specimen shown in the photos. Ships securely double-boxed with custom foam inserts and a certificate of authenticity.