The Late Ordovician period, ending 444 million years ago, was marked by the onset of glaciations. The expansion of non-vascular land plants accelerated chemical weathering and may have drawn down ...

Energy Exploration & Exploitation Vol. 38, No. 6, November 2020 Genesis of dolomite in the upper assemblage of the Ordovician Majiagou Formation in the southeastern Sulige gas field, Ordos Basin, ...

The "Big Five" mass extinctions of the Phanerozoic Eon have long attracted significant attention from the geoscience community and the public. Among them, the Late Ordovician Mass Extinction (LOME ...

The "Big Five" mass extinctions of the Phanerozoic Eon have long attracted significant attention from the geoscience community and the public. Among them, the Late Ordovician Mass Extinction (LOME ...

Manitoba is well-known for its fossil record, including the fossil-filled, world-famous Ordovician-aged Tyndall Stone and the ...

New Theory for What Caused Earth's Second-Largest Mass Extinction. Scientists have been trying to unravel what killed nearly all of Earth’s animals 400 million years ago.

If you were to look up from Earth some 466 million years ago, you might have seen a gleaming ring stretching across the sky, some scientists say.

The rings are theorized to have formed 466 million years ago during one of the coldest periods in the planet's history, known ...

The end of the Ordovician, in contrast, was kicked off by the Earth’s thermostat firmly flipping to “cold” – and much like our own current mass extinction situation, ...

400 million years before the K-Pg boundary, the world was already testing out its appetite for apocalypse with a little-known event called the Late Ordovician mass extinction.