Prehistoric Flora & Fauna
U.S. paleontologists described a new species of angiosperm flower, Tropidogyne pentaptera, found in seven pieces of 99-million-year-old (mid-...
This cycle has been linked to periodic motion of the Sun and planets through the dense mid-plane of our Milky Way Galaxy.
Subduction is a geological process that occurs at the boundary between two of the many plates that make up the Earth’s crust.
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.