When Sponges, Trilobites, and Jawless Fish Ruled the Earth
thoughtco.com
When Sponges, Trilobites, and Jawless Fish Ruled the Earth
The Ordovician period was a crucial time for the evolution of arthropods and vertebrates. Here's a look at prehistoric life during the Ordovician.
Mar 9, 2017
Ordovician Life forms
Life During The Ordovician Mass Extinction. | IFLScience
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Life in the Ordovician: 485 - 444 million years ago
Life in the Ordovician: 485 - 444 million years ago
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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
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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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