Ammonite on stand -U2/376 7E/110 A hand-engraved black cow limousin

A hand-engraved black cow limousin skull

Width: 20 cm

As the solution gradually solidifies

is a distinctive type of metamorphic rock that derives its name from its striking black-and-white striped appearance

Ammonite on stand -U2/376 7E/110 A hand-engraved black cow limousinAmmonoids are a group of extinct marine mollusc animals in the subclass Ammonoidea of the class Cephalopoda. These molluscs, commonly referred to as ammonites, are more closely related to living coleoids (i. e., octopuses, squid and cuttlefish) than they are to shelled nautiloids such as the living Nautilus species. The earliest ammonites appeared during the Devonian, with the last species vanishing during or soon after the CretaceousPaleogene