Trilobite Fossils, Flexicalymene fur Assorted real human lumbar vertebrae

Assorted real human lumbar vertebrae for sale

UWS) Breccia composed of angular mineral grains of anorthite

Fossil mosasaur teeth for sale

These are beautiful rough blue Indian sapphires

Trilobite Fossils, Flexicalymene fur Assorted real human lumbar vertebraeThese are real fossilized trilobites (Flexicalymene ouzregui)! Trilobites were an extremely adaptive marine arthropod that first evolved roughly 521 million years ago and rapidly spread across the globe. They diversified into approximately 17,000 species and were one of history's most successful animals existing for over 270 million years before extinction! These 2 3" long (average) trilobites date back to the Upper Ordovician and were found in