Madagascan Ammonite Fossils
Cut & Polished and Natural specimens. Perfect for gifts and interior design projects, Also some ammonite species from Morocco too. Madagascan ammonites are usually dated to the Jurassic-Cretaceous period.
Ammonites first appeared around 240 Million years ago during the Triassic period. They descended from straight shelled Cephalopods, Orthoceras being a well known species characterised by its long straight chambered body. Ammonoids and their relatives in general, go all the way back to the Devonian, so by the time the Triassic came around, there was many well evolved species of Ammonite in existence. It is thought that the Permian extinction, 252 Million years ago, may have given the newly formed ammonite species a helping hand in becoming so prolific. At the end of the Permian, some 96% of all marine life, and 70% of terrestrial life became extinct. It is one of the worst extinction events the world has ever experienced. At the end of the Triassic era, only one species of ammonite survived.
Amazingly, from this one species, they began to thrive again and became widespread during the Jurassic and Cretaceous. It was at the end of the Cretaceous that ammonites, along with dinosaurs and many other species finally became extinct. The Nautilus, a cousin of the ammonite however, survived and is frequently found in the warmer oceans of the world today.
Collector Iridescent Opal shell Cleoniceras
Cleoniceras besairei ammonite fossils from Tulear, Madagascar. These are classic Albian stage (Cretaceous) fossils and are around 110 Million years old. Larger size collector ammonites, and a few smaller specimens for good measure.
Perisphinctes & Lytoceras Gem Grade Ammonite Cut pairs
Perisphinctes and Lytoceras ammonite fossils from Tulear, Madagascar. These are classic Albian stage (Cretaceous) fossils and are around 110 Million years old. All come boxed and labelled, ready for your collection. These are a better grade than the standard ones and ideal for collectors.
Perisphinctes Cut/Polished Ammonite Pair 2
£13.99
Cut and polished Perisphinctes species, Ammonite Pair (Quality Gem Grade sample)
Found at Mahajunga, Madagascar, Cretaceous age. (Albian stage). These are beautiful Calcite replaced ammonites with full mineralised chambers, the colours of which are beautifully satisfying - just as nature intended. These are a grade up from the standard ones. They are richer in colour than the Cleoniceras sp. They are also more detailed as well.
Average Size: 5.5 -6.0 cm
Found at Mahajunga, Madagascar, Cretaceous age. (Albian stage). These are beautiful Calcite replaced ammonites with full mineralised chambers, the colours of which are beautifully satisfying - just as nature intended. These are a grade up from the standard ones. They are richer in colour than the Cleoniceras sp. They are also more detailed as well.
Average Size: 5.5 -6.0 cm
Perisphinctes Cut/Polished Ammonite Pair 7
£13.99
Cut and polished Perisphinctes species, Ammonite Pair (Quality Gem Grade sample)
Found at Mahajunga, Madagascar, Cretaceous age. (Albian stage). These are beautiful Calcite replaced ammonites with full mineralised chambers, the colours of which are beautifully satisfying - just as nature intended. These are a grade up from the standard ones. They are richer in colour than the Cleoniceras sp. They are also more detailed as well.
Average Size: 5.5 -6.0 cm
Found at Mahajunga, Madagascar, Cretaceous age. (Albian stage). These are beautiful Calcite replaced ammonites with full mineralised chambers, the colours of which are beautifully satisfying - just as nature intended. These are a grade up from the standard ones. They are richer in colour than the Cleoniceras sp. They are also more detailed as well.
Average Size: 5.5 -6.0 cm
Perisphinctes Cut/Polished Ammonite Pair 6
£13.99
Cut and polished Perisphinctes species, Ammonite Pair (Quality Gem Grade sample)
Found at Mahajunga, Madagascar, Cretaceous age. (Albian stage). These are beautiful Calcite replaced ammonites with full mineralised chambers, the colours of which are beautifully satisfying - just as nature intended. These are a grade up from the standard ones. They are richer in colour than the Cleoniceras sp. They are also more detailed as well.
Average Size: 5.5 -6.0 cm
Found at Mahajunga, Madagascar, Cretaceous age. (Albian stage). These are beautiful Calcite replaced ammonites with full mineralised chambers, the colours of which are beautifully satisfying - just as nature intended. These are a grade up from the standard ones. They are richer in colour than the Cleoniceras sp. They are also more detailed as well.
Average Size: 5.5 -6.0 cm
Lytoceras Cut/Polished Ammonite Pair 11
£13.99
Cut and polished Perisphinctes species, Ammonite Pair (Quality Gem Grade sample)
Found at Mahajunga, Madagascar, Cretaceous age. (Albian stage). These are beautiful Calcite replaced ammonites with full mineralised chambers, the colours of which are beautifully satisfying - just as nature intended. These are a grade up from the standard ones. They are richer in colour than the Cleoniceras sp. They are also more detailed as well.
Average Size: 5.5 -6.0 cm
Found at Mahajunga, Madagascar, Cretaceous age. (Albian stage). These are beautiful Calcite replaced ammonites with full mineralised chambers, the colours of which are beautifully satisfying - just as nature intended. These are a grade up from the standard ones. They are richer in colour than the Cleoniceras sp. They are also more detailed as well.
Average Size: 5.5 -6.0 cm
Perisphinctes Cut/Polished Ammonite Pair 14
£13.99
Out of stock
Cut and polished Perisphinctes species, Ammonite Pair (Quality Gem Grade sample)
Found at Mahajunga, Madagascar, Cretaceous age. (Albian stage). These are beautiful Calcite replaced ammonites with full mineralised chambers, the colours of which are beautifully satisfying - just as nature intended. These are a grade up from the standard ones. They are richer in colour than the Cleoniceras sp. They are also more detailed as well.
Average Size: 5.5 -6.0 cm
Found at Mahajunga, Madagascar, Cretaceous age. (Albian stage). These are beautiful Calcite replaced ammonites with full mineralised chambers, the colours of which are beautifully satisfying - just as nature intended. These are a grade up from the standard ones. They are richer in colour than the Cleoniceras sp. They are also more detailed as well.
Average Size: 5.5 -6.0 cm
