4.5" Acanthoceras Ammonite Fossil | 35.8 ounces

The Acanthoceras ammonite is a genus of extinct marine cephalopods that lived approximately 100 to 85 million years ago during the Late Cretaceous period. Acanthoceras species are characterized by their spiral shells adorned with distinctive ribs and tubercles, giving them a rugged appearance. These ammonites belonged to the family Acanthoceratidae and were typically found in shallow seas where they lived as free-swimming predators.

Fossils of Acanthoceras have been discovered in various regions worldwide, including North America, Europe, and Africa, providing valuable insights into the marine environments of the Cretaceous period.

Collectors seek their fossils because of their intricate and robust shell structure, which makes them both scientifically important and aesthetically appealing.