An Index fossil is any animal or plant preserved in the rock record of the Earth that is characteristic of a particular span of geologic time or environment. We will look at a few index fossils and ...

As a period of geologic time, the boundaries of the Triassic are defined on the basis of rocks and the fossil record. It was the German geologist Friedrich August von Alberti who first marked the ...

“When you start naming geologic-time terms, you need to define what exactly the boundary is, where it appears in the rock strata,” says Whitney Autin, a stratigrapher at the SUNY College of ...

Therefore, there are concerns about whether production of geological resources can continue within the sustainable use limit ...