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

Location: Agadir, Morocco  

Weight: 1 Pound 0.3 Ounces

Dimensions: 3.7 Inches Long, 3.3 Inches Wide, 2 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 ancient marine cephalopods that lived from the Devonian through the Cretaceous periods, dominating prehistoric oceans for millions of years. Their coiled, spiral shells—resembling a ram’s horn—inspired their name, derived from the Egyptian god Amun (or Ammon), who was often depicted with ram’s horns. Though their shells look similar to those of modern Nautiloids, Ammonoids are actually more closely related to octopus, squid, and cuttlefish. Highly valued by collectors and paleontologists, Ammonoid fossils offer a fascinating glimpse into Earth’s ancient marine ecosystems and evolutionary history.

Ammonoid shells were intricately designed, divided into internal chambers by walls known as septa. The points where these septa attached to the outer shell formed unique suture patterns, which are key to classifying different Ammonoid groups. Early forms, called Goniatites, displayed a simple zigzag or “Goniatitic” suture pattern with smooth lobes and saddles. Later, Ammonites developed far more elaborate, fern-like suture patterns, reflecting their evolutionary advancement and stunning natural artistry. These fascinating structural details make Ammonoid fossils both scientifically important and visually captivating to collectors and paleontologists.