Ordovician-Silurian extinction | Overview & Facts | Britannica
Ordovician-Silurian extinction | Overview & Facts | Britannica
Jun 15, 2015
britannica.com
Ordovician in biology
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Ordovician in biology
5 months ago
humix.com
Video: The Ordovician Mass Extinction
Video: The Ordovician Mass Extinction
11 months ago
iflscience.com
Life in the Ordovician: 485 - 444 million years ago
Life in the Ordovician: 485 - 444 million years ago
Jul 10, 2021
australianenvironmentaleducation.com.au
The Ordovician Mass Extinction Killed 85 Percent Of Life On Earth In A Totally Unique Way
The Ordovician Mass Extinction Killed 85 Percent Of Life On Earth In A Totally Unique Way
1 year ago
iflscience.com
The Ordovician period was home to six-foot sea scorpions, giant squid-like cephalopods with towering shells, and countless trilobites. But it also marked the first mass extinction in Earth’s history, wiping out 85% of all life. For the first time, animal life faced a global collapse on an unprecedented scale. The cause? A dramatic shift from intense global cooling to rapid warming. It was a devastating one-two punch. Full series on Colossal's YouTube. | Colossal Biosciences
0:54
The Ordovician period was home to six-foot sea scorpions, giant squid-like cephalopods with towering shells, and countless trilobites. But it also marked the first mass extinction in Earth’s history, wiping out 85% of all life. For the first time, animal life faced a global collapse on an unprecedented scale. The cause? A dramatic shift from intense global cooling to rapid warming. It was a devastating one-two punch. Full series on Colossal's YouTube. | Colossal Biosciences
5.3K viewsMay 19, 2025
FacebookColossal Biosciences
Surviving Earth's Ordovician Reef
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Surviving Earth's Ordovician Reef
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(Redo! Cuz I beefed something up!) Why not visit the Ordovician period? The Ordovician period began about 486 mya, at the end of the Cambrian. While the Cambrian critters are a hard show to follow, fossil evidence tells us that life on earth diversified even more than during the cambrian explosion! Unfortunately, it all came crashing down, as the end of Ordovician is marked by one of the first of the 5 big mass extinctions. The event was even more deadly than the one that killed non-avian dinosa
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BrennanThePaleoDude on Instagram: "I would have loved to scuba dive in the Ordovician reefs! The Ordovician Period lasted almost 45 million years, beginning 488.3 million years ago and ending 443.7 million years ago. During this period, the area north of the tropics was almost entirely ocean, and most of the world’s land was collected into the southern supercontinent Gondwana. Ordovician reefs were built by a variety of organisms, including sponges, corals, and microbes, and were teeming with di
9.3K views7 months ago
Instagrampaleodudebrennan
History Photographed on Instagram: "Throughout Earth’s history, five major mass extinctions have drastically reshaped the planet’s biodiversity. The Ordovician-Silurian Extinction, approximately 444 million years ago, stands as one of the earliest cataclysms, eliminating around 85% of marine species. It was likely precipitated by a series of ice ages, causing significant drops in sea levels that disrupted marine habitats. The Permian-Triassic Extinction, known as the “Great Dying,” remains the m
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