And now, scientists hypothesize that Earth may have sported its own ring some 466 million years ago. During the Ordovician Period, a time of significant changes for Earth’s life-forms ...

3 min read During the Ordovician period, part of the Paleozoic era ... For the most part the Earth's climate was warm and wet, with sea levels rising as much as 1,970 feet (600 meters) above ...

Researchers have proposed that Earth may have had a ring system 466 million years ago, during a period of intense meteorite bombardment known as the Ordovician impact spike. This finding ...

Scientists discovered a 480-million-year-old phosphatic sponge in South China, making it the oldest known stromatoporoid and ...

The fossils that these layers contain are world-famous for the details that they record about life on Earth during the Late Ordovician Period. Besides preserving pieces of Earth's history, limestone ...

Scientists use the evidence recorded within rocks throughout geologic time to reconstruct a picture of earth's history. Amateurs ... The oldest rocks, including the beds of southwestern Ohio near ...

Researchers have extensively studied the Ordovician strata in this region ... providing new insights into how environmental factors influenced biological evolution during this critical period in Earth ...