Prehistoric Flora & Fauna
The Devonian is a geologic period and system of the Paleozoic Era spanning from the end of the ...
The Silurian (443.7 to 416.0 million years ago)* was a time when the Earth underwent considerable changes that had important repercussions for the environment and life within it.
The Ordovician Period lasted almost 45 million years, beginning 488.3 million years ago and ending 443.7 million years ago.
Fossils of fragile female scale insects are extremely rare.
Ordovician-Silurian extinction, global extinction event occurring during the Hirnantian Age (445.2 million to 443.8 million years ago) of the...
The Pleistocene Epoch is typically defined as the time period that began about 1.8 million years ago and lasted until about 11,700 years ago.
The geological time scale (GTS) is a system of chronological measurement that relates stratigraphy to time.
Basically, scientists have learned that rocks are stacked in layers containing fossils with the oldest fossils at the deepest layers, and the youngest, or most recent fossils, near the top.
Dinosaurs were in decline for tens of millions of years before the Earth was struck by an asteroid, ending their dominion over the planet. What was killing off dinosaurs near the end of their reign?