Tatahouine Diogenite Stony Meteorite Achondrites Specimen Fell June 24, 1931 Display Rib These adaptations allowed them to These adaptations allowed them to thrive in diverse marine environments and become one of the most successful groups of marine invertebrates in Earth’s history The extinction of elephant birds is widely believed to be closely tied to human activity following the arrival of people in Madagascar approximately 2 indicating that they formed from the accumulation of crystals settling out from a molten state this meteorite provides an exceptional opportunity to examine authentic extraterrestrial material that embodies the geochemical processes governing planetary differentiation and evolution