2 1/4 - 2 3/4" Polished Ammonite Fossils - Madagascar

These are beautiful, polished Cleoniceras ammonite fossils from the Mahajanga Province, Madagascar. The polishing allows for the distinctive "oak leaf" suture pattern that lies underneath the shell of the ammonite to be seen.

These ammonites range from 2 1/4 to 2 3/4" in width with most in the middle of the size range. The photos are representative of the ammonites you will receive but are not the exact specimens. 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
$9
Quantity Discounts
3 to 9 Pieces
$8
10+ Pieces
$7
DETAILS
FOSSIL TYPE
Ammonites
SPECIES
Mostly Cleoniceras
AGE
Cretaceous - Albian Stage (110 MYA)
LOCATION
Mahajanga Province, Madagascar
SIZE
2 1/4" to 2 3/4" wide wide
PRODUCT ID
P-822