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.
Cretaceous age (Turonian), Morocco. Asfla, High Atlas Mountains Beautifully prepared and cleaned fully of matrix back and front, and a little bit left as a perch. Very beautiful collector grade fossils. We also have some other polished ammonites in this section, some from this area, and some from others.
Collector Iridescent Opal shell & Oak Leaf Cleoniceras Cleoniceras besairei & cleon 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. Opal shell and Red Oak leaf pattern polished specimens.
Iridescent Opal shell and Polished Oak Leaf preserved Cleoniceras Cleoniceras besairei/cleon 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.
Cut and polished Cleoniceras cleon species, Ammonite Pairs Found at Mahajunga, Madagascar, Cretaceous age. (Albian stage). Free stands included. These are beautiful Calcite replaced ammonites with full mineralised chambers, the colors of which are beautifully satisfying - just as nature intended.
Fine grade Cleoniceras Madagascan Ammonite Pair 71
Cretaceous age (Turonian), Morocco. Asfla, High Atlas Mountains This section includes Mamites nodosoides and Choffaticeras as well as some polished Oolites from the Jurassic. See each item for more info.
Moroccan Cut and polished hematite & calcite replaced ammonite pairs From the Bajocian stage, 170.3 Ma. to 168.3 Ma. (Jurassic) from the Atlas Mountains of Morocco. The Hematite mineral is very shiny metallic in appearance. The cut and polished pairs Come boxed and labelled.