Amonites
Amonites (also Ammonites) are an extinct group of marine molluscs closely related to living octopuses, squid, and cuttlefish. The earliest appeared during the Devonian, and the last died out during the Cretaceous–Paleogene extinction event. Because of this, Amonites are excellent index fossils, used to link a specific rock layer to a specific geological period.

Amonite Wall
The rock face of the Amonite Wall in the Ramon Crater contains hundreds of amonite fossils, which the Greeks called look like “rams horns’ and are named after the Egyptian god Ammon (also Amon, Amun), who had the wooly head of a ram with spiraled horns.

