4.3" Acanthoceras Ammonite Fossil Agadir Morocco 360 Million Year Old COA

Location: Agadir, Morocco  

Weight: 1 Pound 9.4 Ounces

Dimensions: 4.3 Inches Long, 3.5 Inches Wide, 2.1 Inches Thick

Comes with a Certificate of Authenticity.

The item pictured is the one you will receive.

360 million years old.

Acanthoceras Ammonite

Ammonoids were an extinct group of marine cephalopods that lived in the world’s oceans from the Devonian through the Cretaceous periods. Their coiled, spiral shells, shaped like a ram’s horn, inspired their name—derived from the Egyptian god Amun (or Ammon), who was depicted with ram’s horns. Although they closely resemble modern Nautiloids, Ammonoids are actually more closely related to octopus, squid, and cuttlefish. These remarkable prehistoric sea creatures are among the most recognizable and sought-after fossils, offering valuable insight into the evolution of ancient marine life.

Ammonoid shells were beautifully structured, divided into internal chambers by thin walls known as septa. The points where these septa connected to the outer shell formed distinctive suture patterns, which scientists use to classify Ammonoids. Early species, called Goniatites, featured a simple zigzag or “Goniatitic” pattern with smooth lobes and saddles. In contrast, later Ammonites evolved more elaborate, fern-like suture designs, representing a higher level of complexity and beauty. These intricate patterns make Ammonoid fossils both scientifically significant and highly prized by collectors around the world.