Bumpy Mammites Nodosoides Ammonite - 2.2"

This is a Mammites nodosoides ammonite fossil collected north of Goulmima, Morocco. It's Upper Cretaceous in age (Early Turonian Stage) or approximately 90 million years old. This ammonite has distinctive raised bumps in several rows around it's surface.

The scientific paper describing this ammonite assemblage can be found at: http://data.over-blog-kiwi.com/0/52/28/44/ob_159f69_kennedy-et-al-2008-goulmima.pdf