Mined from: Santander, Colombia

Era: Mesozoic
Geological Age: Between 252 to 66 million years old

Description: Ammonite fossils are spiral-shaped, marine mollusk fossils that belong to the extinct group of cephalopods known as Ammonoidea. These creatures lived in the oceans during the Mesozoic Era and were characterized by their coiled shells, which resemble tightly wound spirals.  Ammonites had tentacles, a soft body, and a chambered shell that they used for buoyancy and protection. These fascinating creatures were diverse in size, shape, and ornamentation, with some species growing as large as several feet in diameter.

These specimens are particularly unique as the ammonite fossils are removable from the matrix and neatly fits back together with the matrix like a puzzle piece. The black coloration of these fossils is due to the type of minerals or environmental conditions present during the fossilization process.

Approximate Size of 1 piece: 7cm x 5cm x 4cm - 10cm x 7cm x 5cm
Approximate Weight of 1 piece: 80g - 280g

Quantity: 1pc

*Note: "presentation" refers to how well formed the fossil is. Higher grades will have better definition, less damage, and higher aesthetic appeal than lower grades.*

We do our best to buy quality products- although not every rock is the same. If you choose to purchase the "staff pick option", we will select the best of the batch for you. Otherwise, it will be at random from the larger batch we have in stock at that price point.