06146 - Top Huge 1.21 Inch OTODUS OBLIQUUS (mackerel shark) Tooth Paleocene Cyclopyge This trilobite with his forked

This trilobite with his forked trident has been prepared partially as free-standing along with its beautiful spines

microcrystalline quartz (SiO2)

Goodsiraspis

This is a brilliant grouping of large

Comments: Approved 27 Apr 2013

06146 - Top Huge 1.21 Inch OTODUS OBLIQUUS (mackerel shark) Tooth Paleocene Cyclopyge This trilobite with his forkedOtudus is a genus belonging to the shark group known as mackerel sharks. It reigned the seas during the Paleocene and the Eocene (60 45 million years ago). It is a quite dominant species in the phosphate quarries in this sector of Morocco. This species has only been described via its teeth and vertebrae. As all the Elasmobranchii, the skeleton has a cartilaginous non osseous nature, what makes difficult its fossilization process. . The teeth of this