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

Location: Agadir, Morocco  

Weight: 1 Pound 9.2 Ounces

Dimensions: 4.7 Inches Long, 4.2 Inches Wide, 1.9 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 extinct marine cephalopods that thrived in Earth’s oceans from the Devonian through the Cretaceous periods. Their coiled, spiral shells resembled a ram’s horn, inspiring their name—derived from the Egyptian god Amun (or Ammon), who was depicted with ram’s horns. Although Ammonoids closely resemble modern Nautiloids, their nearest living relatives are actually octopus, squid, and cuttlefish. Today, Ammonoid fossils are highly valued for their beauty, scientific importance, and insight into the evolution of prehistoric marine life.

Ammonoid shells were intricately designed, divided into internal chambers by thin walls known as septa. Where these septa met the outer shell, they formed unique and complex suture patterns—a key feature used to classify Ammonoids. Early species, called Goniatites, exhibited a simple zigzag or “Goniatitic” pattern with smooth lobes and saddles. In contrast, later Ammonites developed highly elaborate, fern-like suture patterns, reflecting their advanced evolutionary stage. These beautiful and distinctive designs make Ammonoid fossils scientifically valuable and visually captivating for both collectors and paleontologists.