Ordovician
If the Cambrian was characterized by Trilobites inventing skeletons, the Ordovician was when trilobite’s copyright expired… The Ordovician began 485 million years ago, and it ended 443 million years ago. It was the period...
If the Cambrian was characterized by Trilobites inventing skeletons, the Ordovician was when trilobite’s copyright expired… The Ordovician began 485 million years ago, and it ended 443 million years ago. It was the period...