Gleaming Polished Ammonite Fossil with Fiery Aragonite Crystal Chambers Sectioned Cretaceous Fossil Revealing an Intricate Labyrinth of Sutures and Chambers - Height: 128 mm - Width: 104 mm- 460 g - (1)





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Cretaceous ammonite fossil of the genus Cleoniceras from Madagascar, carefully cut and polished to reveal the intricate sutures and aragonite crystals, measuring 128 mm high by 104 mm wide by 30 mm deep and weighing 460 g.
Description from the seller
Lower Cretaceous - 100-110 million years ago — A piece of natural history that is also a work of art.
This magnificent specimen of a Cleoniceras fossil ammonite, from deposits in Madagascar, has been skillfully cut and polished to reveal the extraordinary complexity of its inner world. Dating to the Cretaceous period, about 110 million years ago, this fossil is a tangible testament to a distant era, an open portal to prehistoric seas.
The glossy surface captures light, highlighting an incredibly detailed pattern of sutures. These natural motifs, outlining the internal chambers of the shell, draw elegant foliate arabesques reminiscent of fern leaves. The warm tones of amber, brown, and cream blend into a fascinating chromatic composition, making every detail a small masterpiece of natural design.
The charm of this specimen is further enhanced by aragonite crystallizations formed inside some cavities. Like tiny geodes, these crystalline aggregates glisten as the angle of light changes, creating a striking contrast with the opalescent fossil matrix and adding a valuable three-dimensionality to the whole.
Ammonites, extinct cephalopod mollusks, dominated the Mesozoic oceans. The genus Cleoniceras is one of the most representative of the Albian period. Their spiral shell was not only protection but also a sophisticated flotation apparatus, whose internal structure is perfectly preserved in this fossil.
This specimen is not only a paleontological artifact of great interest, but also an object of rare beauty, ideal for enriching a mineral collection, a modern Wunderkammer, or to confer a touch of elegance and history to any environment.
A piece that combines science, art, and design in a timeless form.
Seller's Story
Lower Cretaceous - 100-110 million years ago — A piece of natural history that is also a work of art.
This magnificent specimen of a Cleoniceras fossil ammonite, from deposits in Madagascar, has been skillfully cut and polished to reveal the extraordinary complexity of its inner world. Dating to the Cretaceous period, about 110 million years ago, this fossil is a tangible testament to a distant era, an open portal to prehistoric seas.
The glossy surface captures light, highlighting an incredibly detailed pattern of sutures. These natural motifs, outlining the internal chambers of the shell, draw elegant foliate arabesques reminiscent of fern leaves. The warm tones of amber, brown, and cream blend into a fascinating chromatic composition, making every detail a small masterpiece of natural design.
The charm of this specimen is further enhanced by aragonite crystallizations formed inside some cavities. Like tiny geodes, these crystalline aggregates glisten as the angle of light changes, creating a striking contrast with the opalescent fossil matrix and adding a valuable three-dimensionality to the whole.
Ammonites, extinct cephalopod mollusks, dominated the Mesozoic oceans. The genus Cleoniceras is one of the most representative of the Albian period. Their spiral shell was not only protection but also a sophisticated flotation apparatus, whose internal structure is perfectly preserved in this fossil.
This specimen is not only a paleontological artifact of great interest, but also an object of rare beauty, ideal for enriching a mineral collection, a modern Wunderkammer, or to confer a touch of elegance and history to any environment.
A piece that combines science, art, and design in a timeless form.

