Your ammonite probably is...
Crioceratites
Suture: Ammonitic
Crioceratites (sometimes called Crioceras) was coiled in a loose spiral. It had many groups of fine radial ribs seperated by larger radial ribs. Some species of Crioceratites had impressive spines (which can be seen in the image). Crioceratites had a worldwide distribution and lived in the Lower Cretaceous.
Image by Hectonichus, CC BY-SA 3.0, https://commons.wikimedia.org/wiki/File:Crioceratitidae_-_Crioceratites_duvalii.JPG
