Description

Ammonite fossil from France

Ammonites are an extinct subclass of cephalopod mollusks, marine animals, like nautilus, octopus or argonauts today.

They were characterized by a more or less rolled univalve shell of which only the last compartment was occupied by the animal, the other compartments being used to control its buoyancy.

Their name comes from their spiral appearance: ammonis cornua, which means "horns of Ammon". The term was coined by Pliny the Elder in 79 A.D., because of the way the ammonite coil resembled the Egyptian god Ammon, often depicted with ram's horns.

Jurassic period, about 200 to 145 million years ago

Age : Jurassic : -200/-145 millions years old

Origin :France - Deux-Sèvres

Genre: Reineckeia

Diameter of the ammonite, about 15cm - Weight: 1.46Kg

This one has been glued, we see traces of glue.