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This Specimen has been sold.
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Stunningly Beautiful 6.8 Inch Split Ammonite
This is a true natural work of art, a large Cleoniceras ammonite fossil from the Cretaceous (110 MYA) found in the Mahajanga Province of Madagascar. It has been cut in half and polished to reveal the inner chamber detail. These chambers have been highly mineralized with some of them being preserved as pockets of calcite crystals. The reverse side is also polished and displays some of the shell along with the distinctive suture pattern.
This ammonite is quite large at 6.8 inches wide and comes with a pair of display stands to show it off. It is truly a natural work of art.
This ammonite is quite large at 6.8 inches wide and comes with a pair of display stands to show it off. It is truly a natural work of art.
About Ammonites
Ammonites were predatory, marine mollusks that thrived during the Paleozoic and Mesozoic eras, particularly in the Jurassic and Cretaceous periods, before going extinct around 66 million years ago. These creatures are characterized by their coiled, spiral shells, which resemble the modern-day nautilus. Ammonite shells were divided into chambers; as they grew, they built new chambers and sealed off the old ones. These chambers were filled with gas, which helped them control buoyancy in the ocean.
The outer shell of ammonites often displays intricate ribbed or ridged patterns and their fossils sometimes show a wide range of beautiful colors due to mineralization over time. The shells fossilized well, making ammonites abundant in the fossil record.. In addition to being popular in fossil collections, ammonites are valuable in geological studies, as they serve as index fossils, helping scientists date rock layers and understand the Earth's prehistoric environments.
Artist's reconstruction of an ammonite, by Nobu Tamura
Ammonites were predatory, marine mollusks that thrived during the Paleozoic and Mesozoic eras, particularly in the Jurassic and Cretaceous periods, before going extinct around 66 million years ago. These creatures are characterized by their coiled, spiral shells, which resemble the modern-day nautilus. Ammonite shells were divided into chambers; as they grew, they built new chambers and sealed off the old ones. These chambers were filled with gas, which helped them control buoyancy in the ocean.
The outer shell of ammonites often displays intricate ribbed or ridged patterns and their fossils sometimes show a wide range of beautiful colors due to mineralization over time. The shells fossilized well, making ammonites abundant in the fossil record.. In addition to being popular in fossil collections, ammonites are valuable in geological studies, as they serve as index fossils, helping scientists date rock layers and understand the Earth's prehistoric environments.
Artist's reconstruction of an ammonite, by Nobu Tamura
SPECIES
Cleoniceras
LOCATION
Ambatolafia, Mahajanga Province, Madagascar
FORMATION
N/A
SIZE
6.8"
CATEGORY
SUB CATEGORY
ITEM
#1291
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