/ reply You need to login before you can answer. It is not uncommon that some species have repeated names such as Lutra Lutra, Bombus Bombus, Turdus Turdus, Lupus Lupus etc. When it is necessary to use a Latin name, follow the standard practice.t is not uncommon that some species have repeated names such as Lutra Lutra, Bombus Bombus, Turdus Turdus, Lupus Lupus etc. When it is necessary to use a Latin name, follow the standard practice.
A sample of gneiss from the site of the Earth's oldest dated rocks (the Acasta River area of Canada). This sample has been dated at 4.03 billion years old.
The age of a rock in years is called its absolute age. Geologists find absolute ages by measuring the amount of certain radioactive elements in the rock. When rocks are formed, small amounts of radioactive elements usually get included.