Harness the drama of a Cretaceous sea-floor in a single, sculptural statement piece. This newly prepared “thanatocoenosis” (mass-mortality assemblage) from Mahajanga, Madagascar, captures a graceful vertical sweep of ammonites—each polished to reveal caramel-amber aragonite and lightning-bolt sutures—while retaining pockets of raw matrix for compelling contrast.

Why this specimen stands out

• Vertical fluidity – the natural matrix has been thoughtfully cut so the cluster ascends in a gentle S-curve, creating instant visual movement on shelves, desks or pedestals.

• Multiple life-stories in one block – at least five distinct ammonites of varying sizes are preserved together, each recording subtle differences in shell ornament, iridescence and suture geometry.

• High-gloss windowing – selected faces are mirror-polished, unveiling swirling chocolate-to-gold aragonite with spectacular dendritic sutures; adjacent areas remain raw, highlighting original sea-floor textures.

• Self-standing stability – no acrylic base or armature is required; the matrix has been trimmed for a balanced, upright display.

• Ethically sourced & artisan finished – extracted under licensed Malagasy concessions and hand-prepared locally, supporting community craftsmanship.

Perfect for

• Show-piece interior décor with genuine natural history provenance

• Museum exhibits or classrooms illustrating paleo-ecological “snapshots” of ancient marine environments

• Distinctive gifts for fossil aficionados, geologists, designers and collectors of one-of-a-kind objects

You will receive the exact specimen pictured. Ships double-boxed with custom foam protection and a signed certificate of authenticity.