The Late Ordovician mass extinction (LOME), sometimes known as the end-Ordovician mass extinction or the Ordovician-Silurian extinction, is the first of the "big five" major mass …

Ordovician-Silurian extinction, global event that eliminated some 85 percent of all Ordovician species. It was driven by climate and habitat disruptions caused by the onset of glaciation in …

2024年12月24日 · The end of the Ordovician was heralded by a mass extinction, the second largest in Earth’s history. (The largest mass extinction took place at the end of the Permian …

2022年9月12日 · During the Ordovician Period, around 485 to 444 million years ago, the diversity of marine life exploded. Trilobites and mollusks crawled on the ocean floor, plankton-like filter …

The Late Ordovician Mass Extinction was the earliest of the ‘big’ five extinction events and the earliest to affect the trajectory of metazoan life. Two phases have been identified near the start …

2019年11月26日 · The Ordovician-Silurian extinction was the first event of the five major Phanerozoic events and was also first to greatly affect the animal-based communities. The …

The extinction at the end of the Ordovician Period is the oldest of the "Big Five." Animals had not yet conquered land at this time so the extinction was confined to life in the seas.

In less than a million years Dinogorgon vanished in the greatest mass extinction ever, along with about nine of every ten plant and animal species on the planet.