20685 - Extremely Rare 2.39 Inch Pappocetus lugardi (Whale Ancestor) Incisor Rooted Tooth Rebbachisaurus The major silicate mineral is

The major silicate mineral is olivine

They have an exceptional conservation

Some of these studies are: Apesteguía 2005

The details of the anatomy of the superficial osseous structure of the root are extremely well preserved

Samples (polished thin-sections) also were studied under scanning electron microscope (Research Technical Services – UA)

20685 - Extremely Rare 2.39 Inch Pappocetus lugardi (Whale Ancestor) Incisor Rooted Tooth Rebbachisaurus The major silicate mineral isPappocetus is a protocetid and a large amphibious aquatic carnivore. Pappocetus is also an ancestor of Basilosaurus. Rare specimen from an early evolutionary stage of the modern whale. In the phosphate basins of the Moroccan Western Sahara, the fossil record of these enormous vertebrates is very well represented, of this type of cetaceans that speak of an evolutionary transition from land to sea. The protocetids had large fore limbs and hindlimbs that