3.8" Fossil Ammonite (Beudanticeras?) - Madagascar

Here's a beautiful silver iridescent ammonite fossil quarried near Mahajanga Province, Madagascar. This is one of the more uncommon types from the locality and I believe the genus is probably Beudanticeras. These ammonites inhabited the shallow seas approximately 110 million years ago. If you catch it in the right light or particularly if it is wet the fossil shine with a brilliant iridescence. It comes with an acrylic display stand.

Ammonites were predatory mollusks that resembled 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 first appearing in the fossil record 240 million years ago, descending from straight shelled cephalopods. The last lineages disappeared 65 million years ago at the end of the Cretaceous.
Ambatolafia, Mahajanga Province, Madagascar
3.8" wide
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