Ammonites grew their shells from calcium carbonate and grew constantly throughout their life span. A relative of octopi and squids today, ammonites swam through the open ocean, preying on smaller marine animals.

• Fossil replica of an ammonite from the Mesozoic measuring approximately 1.5" (4 cm)
• This fossil replica is made from a resin designed to last through heavy classroom and laboratory use
• Ammonites like this one swam through the ocean while dinosaurs roamed the earth
• Perfect for use in the classroom during lessons on fossils and paleontology
• Ammonite shell segments can be counted to determine the age of the animal

This fossil replica is perfect for lessons on paleontology and geology. It's also great for use in a fossil dig activity.