amnhnyc: It’s Fossil Friday, and we’re celebrating amazing ammonites! The extinct mollusks known as ammonites inhabited the planet for more than 300 million years—almost twice as long as dinosaurs—before disappearing in the mass extinction event
amnhnyc: It’s Fossil Friday, and we’re celebrating amazing ammonites! The extinct mollusks known as ammonites inhabited the planet for more than 300 million years—almost twice as long as dinosaurs—before disappearing in the mass extinction event
