20801 - Top Beautiful Huge 5.41 Inch Calcite Crystals from South Morocco - New Location Hybodus This variety of quarz is

This variety of quarz is called chalcedony

interesting conclusions can also be drawn about the vegetation of the moment

Not only the tooth belongs to an inusual raptor family

Posterior horizontal inflection on mandibular retroarticular process

In the following link we can also find a study where an Abelisaurid in described in this sector based on the proximal area of a femur:

20801 - Top Beautiful Huge 5.41 Inch Calcite Crystals from South Morocco - New Location Hybodus This variety of quarz isHuge and sharp crystals of calcite from a new location unpublished in the mountains of the Erich region, Morocco. Calcite is a carbonate mineral and the most stable polymorph of calcium carbonate (CaCO3). The Mohs scale of mineral hardness, based on scratch hardness comparison, defines value 3 as "calcite". Other polymorphs of calcium carbonate are the minerals aragonite and vaterite. Aragonite will change to calcite over timescales of days or less at