20971 - Top Huge 2.54 Inch Otodus obliquus Shark Tooth in Matrix Paleocene Other_Reptiles Thomas and Owens 1978 and

Thomas and Owens 1978 and Warburg 1925

Cope 1869 (mosasaur)

Troilite not surrounded by schreibersite

Beautiful sand dollar urchin

REPTILIA Linnaeus

20971 - Top Huge 2.54 Inch Otodus obliquus Shark Tooth in Matrix Paleocene Other_Reptiles Thomas and Owens 1978 andIt is a tooth from an enormous shark species Otudus obliquus. It is preserved in its natural matrix. Its preservation is very good, with a premium quality enamel. Otudus 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