スミソニアン博物館さんのインスタグラム写真 - (スミソニアン博物館Instagram)「Five fab finds on this #NationalFossilDay from our @SmithsonianNMNH to show your dino-obsessed BFF. But did you know that not all fossils are dinosaurs? Swipe to the last picture to see a “Lepidodendron,” an extinct tree-like plant that could grow up to 160 feet tall! Learn more about each fossil below and check out @smithsonianNMNH’s latest post to learn how these fossils got their names. 🦖🦕🦷🌿 1. Centrosaurus apertus: This fossil was collected in Canada in 1917. It’s between 70 million to 80 million years old. 2. Gulo gulo: More commonly known as a wolverine, ours was collected in 1914 Maryland and is between 250,000 to 1.9 million years old. 3. Camptosaurus: Ours was collected in Wyoming back in 1885 and is between 149.2 to 154.8 million years old. 4. Otodus megalodon: Better known as “megalodon,” this large tooth comes from an extinct shark that lived between 3.6 million to 23 million years ago. 5. Lepidodendron: This extinct plant fossil is between 315.2 to 307 million years old.」10月12日 2時04分