Hi mosasaurs lovers, I looked around on different american fossils web sites , and I found, is nowhere a description or list about different species of Mosasaurs from Morocco . So I'll try humbly to fix it . Feel free to correct me if you see something wrong.   The Moroccan phosphate history began in 1921 , Moroccan phosphate mines operate three layers of phosphates . Level 1 : Ypresian phosphate bed Level 2 : Thanetian phosphate bed Level 3 : Maestrichian phos