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The Triassic period stands out in Earth’s history as the time when dinosaurs first evolved. It was followed by the Jurassic and Cretaceous periods – at the end of the latter, the dinosaurs were wiped ...

The classic technique for assessing the history of a rocky planet’s geology is to count craters. On average, areas with longer exposure to space have had more impacts, and therefore more craters. By ...

The outcroppings of rock along Duck Creek contain rocks from two different geologic periods. The limestones and dolomitic limestones are from the Devonian Period and represent geologic time from ...

Earth’s history is divided up into different geological wedges of time, wedges we like to call things like epochs, periods, and eons. They’re defined by events that shaped the planet (think big ...