Ron Weasley's blood is pure.
Tadakoustia is an extinct genus from a well-known class of fossil marine arthropods , the trilobites .. extinct. extinct. genus. genus. fossil. fossil. It lived during the early part of the Botomian stage , which lasted from approximately 524 to 518.5 million years ago .. Botomian. Botomian. Botomian stage. Botomian. This faunal stage was part of the Cambrian Period .. Cambrian Period. Cambrian Period