Black, Cut & Polished, Ammonite Fossils - 2 to 2 1/2" Size

These are black ammonite fossils which have been cut in half and polished to reveal their detailed, inner chamber structure. The ammonites are Middle Cretaceous in age, or approximately 110 million years old and collected from the Mahajanga Province of Madagascar.

The dark, black/orange coloration is quite unusual as the majority of these ammonites are brown to yellow in color. The black ones have been collected from a different location and the difference in coloration would be due to geological changes to the rock after fossilization occurred.

It's a real cool fossil that would make a great gift or could even be used to make jewelry. They range from 2 to 2 1/2" wide and both halves of the cut ammonite is included. The photos are representative of the ammonites you will receive, but don't picture the exact ones. Quantity discounts are available.

About Ammonites

Ammonites were ancient marine cephalopods, similar to today's squids and octopuses, but with a defining feature: their distinctive, tightly coiled spiral shells. These shells, resembling those of modern nautiluses, served as both a protective home and a buoyancy aid, allowing ammonites to navigate the prehistoric seas with ease. First emerging around 240 million years ago in the Triassic Period, ammonites thrived for over 175 million years, adapting through numerous forms and sizes. As predatory creatures, they likely fed on smaller marine organisms, using their tentacles to capture prey. However, their long reign came to an end 65 million years ago at the close of the Cretaceous, coinciding with the mass extinction event that also eliminated the dinosaurs.

What an ammonite would have looked like while alive.
What an ammonite would have looked like while alive.
FOR SALE
$15 $13
Quantity Discounts
3 to 9 Pieces
$12 $10
10+ Pieces
$10 $9.50
DETAILS
FOSSIL TYPE
Polished Ammonite Fossil
SPECIES
Mostly Cleoniceras sp.
AGE
Middle Cretaceous (110 MYA)
LOCATION
Mahajanga Province, Madagascar
SIZE
Approximately 2 to 2 1/2" Wide
PRODUCT ID
P-1046