20864 - Lustrous Yellow Green Apatite Crystals on Feldspar Matrix - Imilchil (Morocco) KemKem_Beds_Fish_Assemblage in the western

in the western

Netherlands Journal of Geosciences 84: 167-175

We also find in the Early Paleocene the genus Brachyopsemys tingitana

Christiansen

Its morphology is never slightly flat like that of the main species of Pterosaur

20864 - Lustrous Yellow Green Apatite Crystals on Feldspar Matrix - Imilchil (Morocco) KemKem_Beds_Fish_Assemblage in the westernApatite is a group of phosphate minerals, usually referring to hydroxylapatite, fluorapatite and chlorapatite, with high concentrations of OH, F and Cl ions, respectively, in the crystal. The formula of the admixture of the three most common endmembers is written as Ca10(PO4)6(OH,F,Cl)2.