Fossil Shark Egg Case (Palaeoxyris prendeli) - DLD 3706 Mammoth / Mastodon vibrant violet-to-purple silicate mineral exclusively

vibrant violet-to-purple silicate mineral exclusively found in the Sakha Republic (Yakutia) of Siberia

Carcharodontosaurus was one of the largest theropod dinosaurs to ever roam the earth

rather than developing in a more common cubic form

stone of blessings

Fossil Shark Egg Case (Palaeoxyris prendeli) - DLD 3706 Mammoth / Mastodon vibrant violet-to-purple silicate mineral exclusivelyPalaeoxyris sp. and other shark egg cases were discovered roughly 175 years ago and because of their association with plants material in Mazon Creek concretions they were initially classified as plants. Not all researchers agreed, and only years later was the relationship with modern forms of spiral shark egg capsules established. These long, narrow, spindle shaped fossils have surfaces marked by weak spiral lines in a helix. At least 9 species of