26" Wide Polished Ammonite & Nautilus Cluster - Madagascar

Here is a large polished ammonite cluster still embedded in the rock in which they were found. It is 26" x 11" x 8". There are three main ammonites the largest measuring 9.6" wide. On the end ammonites, the polishing has exposed the intricate suture pattern of the inner shell. Many other fossils including clams, gastropods and a nautilus can also be seen in the rock.

The ammonites are Cretaceous (Albian Stage) in age or approximately 110 million years old and are quarried in the Mahajanga Province of Madagascar.

Ammonites were predatory cephalopod mollusks that resembled squids with spiral shells. They are more closely related to living octopuses, though their shells resemble that of nautilus species. True ammonites appeared in the fossil record about 240 million years ago during the Triassic Period. The last lineages disappeared 65 million years ago at the end of the Cretaceous.

What an ammonite would have looked like while alive.
What an ammonite would have looked like while alive.
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DETAILS
SPECIES
Unidentified
LOCATION
Ambatolafia, Mahajanga Province, Madagascar
SIZE
26" Wide, 11" Tall, 8" Deep
ITEM
#109235
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