during the permian extinction approximately 96 % of all marine species were lost.
during the permian extinction approximately 96 % of all marine species were lost.
during the permian extinction approximately what percent of all marine species were lost?
96 %
the permian–triassic extinction event, also known as the p–tr extinction, the p–t extinction, the end-permian extinction and colloquially as the great dying, formed the boundary between the permian and triassic geologic periods, as well as between the paleozoic and mesozoic eras, approximately 252 million years ago. it is the earth's most severe known extinction event, with up to 96% of all marine species and 70% of terrestrial vertebrate species becoming extinct. it was the largest known mass extinction of insects. some 57% of all biological families and 83% of all genera became extinct. because so much biodiversity was lost, the recovery of land-dwelling life took significantly longer than after any other extinction event, possibly up to 10 million years. studies in bear lake county, near paris, idaho, showed a relatively quick rebound in a localized marine ecosystem, taking around 2 million years to recover, suggesting that the impact of the extinction may have been felt less severely in some areas than others.
permian–triassic extinction event
pangea formed roughly 20 million years before the permian extinction. during the permian extinction over 95% of all marine species were lost and 70% of terrestrial species were lost. the triassic period of pangea became a time of recovery from the permian extinction. this recovery included the rise of sea levels which created extensive shallow oceanic shelves for large marine reptiles. this recovery period was when terrestrial animals flourished and when land reptiles diversified and flourished, along with the appearance of dinosaurs. these dinosaurs would become what characterizes the life forms of the following periods, the jurassic and cretaceous. lastly at the end of the triassic and the beginning of the jurassic was the first appearance of small shrew like mammals that came from reptiles.
paleocontinent