Perisphinctes Ammonite (loose) - Jurassic Period - 174.1 to 145 MYA - Madagascar

Perisphinctes Ammonite (loose)

Jurassic Period, 174.1 to 145 MYA

Origin: Madagascar

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This listing includes the loose fossil(s) only, with no display. The item you receive will be of similar quality to the one shown above!

These ammonites are of the genus Perisphinctes, and featured tight ridges along their shells. They were unearthed in Madagascar, and date back up to 174.1 million years ago to the beginning of the Jurassic period!

Size: Approximately 1 to 1.5 inches in diameter

What were ammonites?

Ammonites are the fossilized remains of ammonoids, a group of extinct mollusk-like animals that are most closely related to squids and cuttlefish today. These creatures filled earth's oceans for over 340 million years, until vanishing along with the dinosaurs in the mass extinction event at the end of the Cretaceous period.

Each purchase includes an informational card about the fossil.