◇This is a beautiful ammonite fossil with an internal structure. I don't remember when I bought it, but I believe it was purchased at a museum. ◇According to the label, it's from the Mesozoic Era, specifically the Jurassic to Cretaceous periods. The origin is Madagascar. ◇I have never taken it out of the bag it came in when I bought it. - Type: Ammonite - Origin: Madagascar - Size: Approximately 5cm - Condition: Unused Thank you for looking.