Canadian Ammonite. Canadian ammonites are rare. These exceptionally scarce fossils are sought after by museums and private collectors the world over. They are at the pinnacle of these collections and make some of the most popular museum displays with their brilliant array of colours. As rare as they are beautiful, all Ammonite fossils are one of a kind¢.‚¬unique in brilliance and color. While ammonite fossils are found on every continent in rock formations from 400 million to 65 million years in age, only in southern Alberta, Canada are they found with these distinctly bright, beautiful and iridescent colors. Colorful Canadian Ammonites are found east of the Rocky Mountains in the Upper Cretaceous Bearpaw Formation, which dates back approximately 71 million years. Millions of years of tectonic pressure, heat and mineralization have resulted in the formation of these geological wonders. These exceptionally scarce Canadian Ammonites are sought after by museums and private collectors the world over. They are at the pinnacle of these collections and make some of the most popular museum displays with their brilliant array of colors.