Fossilised shell
05
days
15
hours
24
minutes
35
seconds
No bids placed
Catawiki Buyer Protection
Your payment’s safe with us until you receive your object.View details
Trustpilot 4.4 | 123327 reviews
Rated Excellent on Trustpilot.
Aioloceras (Cleoniceras) sp. ammonite from Madagascar, Lower Cretaceous, polished and enhanced, 20.5 × 17 × 2.4 cm, weight 929 g, on a custom stand totaling about 33 cm.
AI-assisted summary
Description from the seller
Ammonite + custom stand = 33 cm
ammonite : 20,5x17x2,4 cm
Here is a large cut and polished Aioloceras (Cleoniceras) sp. ammonite fossil from the Cretaceous of Madagascar. It exhibits gorgeous mineralization within the chambers, each separated by white calcite scepta (divisions).
Ammonites were predatory mollusks that resembled a squid with a shell. These cephalopods had eyes, tentacles, and spiral shells. They are more closely related to a living octopus, though the shells resemble that of a nautilus. Ammonites appeared in the fossil record about 240 million years ago and they barely survived several major extinction events. The last lineages disappeared 65 million years ago at the end of the Cretaceous.
Seller's Story
At UnEarthed , we specialize in rare and authentic treasures from the Earth’s deep past .
from prehistoric fossils and exquisite seashells to tribal artifacts that echo the spirit of ancient cultures. Each piece in our curated collection tells a story, connecting you to the natural and human history that shaped our world. Whether you’re a collector, a curator, or simply captivated by the extraordinary, we offer you a chance to own a piece of time itself.
Ammonite + custom stand = 33 cm
ammonite : 20,5x17x2,4 cm
Here is a large cut and polished Aioloceras (Cleoniceras) sp. ammonite fossil from the Cretaceous of Madagascar. It exhibits gorgeous mineralization within the chambers, each separated by white calcite scepta (divisions).
Ammonites were predatory mollusks that resembled a squid with a shell. These cephalopods had eyes, tentacles, and spiral shells. They are more closely related to a living octopus, though the shells resemble that of a nautilus. Ammonites appeared in the fossil record about 240 million years ago and they barely survived several major extinction events. The last lineages disappeared 65 million years ago at the end of the Cretaceous.
Seller's Story
At UnEarthed , we specialize in rare and authentic treasures from the Earth’s deep past .
from prehistoric fossils and exquisite seashells to tribal artifacts that echo the spirit of ancient cultures. Each piece in our curated collection tells a story, connecting you to the natural and human history that shaped our world. Whether you’re a collector, a curator, or simply captivated by the extraordinary, we offer you a chance to own a piece of time itself.
Details
Number of items
1
Specimen
Ammonite
Scientific name
Aioloceras (Cleoniceras) sp.
Country of Origin
Madagascar
Geological Period
Cretaceous, Lower (145 - 100.5 million years)
Condition
Enhanced
Treatment
Polished
Weight
929 g
Height
20.5 cm
Width
17 cm
Depth
2.4 cm
Sold by
