Paleontology
The Permian-Triassic extinction, also known as the Great Dying, was the most significant mass extinction event in Earth's history, occurring around 252 million years ago. It resulted in the loss of approximately 90% of marine species and 70% of terrestrial vertebrate species. This catastrophic event dramatically reshaped ecosystems and paved the way for the rise of new life forms, profoundly influencing the evolutionary pathways of fish and arthropods, as well as impacting fossil indicators used to understand past environments.
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