Cleoniceras Ammonite Pair 151mm

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Cleoniceras Ammonite Pair 151mm

SKU:TFS0409

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£142.00

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A high quality conserved fossil Cleoniceras Ammonite from Madagascar. Prepared, cut into two halves with polished faces. The process revealing the wonders of mineralisation which takes place over millions of years. Each chamber has been replaced with Quartz and sedimentary silt now hardened or petrified. Ammonites are part of the Ammonitida of marine invertebrates. Read the full description below...

Genus: Cleoniceras ammonite. Hoplitidae.
Age: Albian 100 to 113 m.y.a., Cretaceous period 135 to 65 m.y.a
Origin: N.E. Madagascar. E.Africa, South Indian Ocean

Cleoniceras ammonite measurements.
Height: 15.1 cm
Width: 12.4 cm
Depth: 1.9 cm

Approximate weight: 0,752 g

Cleoniceras ammonite pairs include two acrylic stands for display.

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Details

A Cleoniceras ammonite Pair conserved from Madagascar. These have been prepared, cut in half and polished revealing the wonders of mineralisation which takes place over millions of years. Each chamber has been replaced with calcite, quartz and sedimentary muds which have hardened into limestone, in the process absorbing rich mineral nutrients which colour to form in most cases various exotic brightly coloured jaspers, a semi precious stone.


A few years ago off the Great Barrier reef at depths between 200 to 400 meters, sightings of the Nautilus Pompilius were made, showing the pressures these Cephalopods can attain. The Ammonites extinction is dated around 74 million years, pre the great mass extinction of around 65 million years. Ammonites are important Index Fossils, it is often possible to link the sediment layer in which they are found to specific geological time periods. The largest ammonite to date is around 2.5 meters in diameter from Germany.

Additional Information

SKU TFS0409
Age Cretaceous
Origin Madagascar
Colour Brown

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