The Ordovician period offers a detailed window into early marine ecosystems and climatic transitions, with palynology and microfossil biostratigraphy serving as key tools in reconstructing these ...
Marine fossil specimens unearthed in northern Portugal are filling a gap in understanding evolution during the Middle Ordovician period. A clutch of marine fossil specimens unearthed in northern ...
Subdivision and correlation of the Ordovician System serve as the time scale for constraining the major geological and biological events during the Ordovician Period. Currently a globally unified ...
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Since the beginning of time, Earth has created life and then wiped out most of it in catastrophic, ultra-destructive moments.
From about 470 million years ago, the Middle Ordovician period witnessed a rapid increase in biodiversity. This explosion in numbers of species is almost perfectly contemporaneous with an increased ...
The once very successful group of marine arthropods called trilobites were hit hard by the Ordovician mass extinction and never fully recovered until going extinct 200 million years later. At the end ...
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From the beginning of the Ordovician, marine life began its great radiation, which was characterized by the rapid appearance of new orders, families, and genera, together with the replacement of ...
Today, only the largest planets in the solar system have rings, but a new study suggests Earth may have been a ringed planet in the distant past. Scientists studying the geology of the Ordovician ...
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Back when the Earth was crawling with trilobites and other strange shelled creatures, our planet may have had a ring just like Saturn's. This ancient ring system is thought to have formed about 466 ...
New research reveals more information about the first and oldest of the 'big five' extinctions. Around 85% of marine species, most of which lived in shallow oceans near continents, disappeared during ...
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