What major events happened during the Triassic period?

The start of the Triassic period (and the Mesozoic era) was a desolate time in Earth’s history. Something”a bout of violent volcanic eruptions, climate change, or perhaps a fatal run-in with a comet or asteroid”had triggered the extinction of more than 90 percent of Earth’s species.

What animals disappeared during the Triassic period?

End-Triassic extinctions Many families of brachiopods, gastropods, bivalves, and marine reptiles also became extinct. On land a great part of the vertebrate fauna disappeared at the end of the Triassic, although the dinosaurs, pterosaurs, crocodiles, turtles, mammals, and fishes were little affected by the transition.

What year did the Triassic period start and end?

Triassic Period, in geologic time, the first period of the Mesozoic Era. It began 252 million years ago, at the close of the Permian Period, and ended 201 million years ago, when it was succeeded by the Jurassic Period.

What era is the Triassic Period in?

Mesozoic

As lineages invade different niches and become isolated from one another, they split, regenerating some of the diversity that was wiped out by the mass extinction. The upshot of all these processes is that mass extinctions tend to be followed by periods of rapid diversification and adaptive radiation.

How long does it take for biodiversity to return after a mass extinction?

10 million years

What are the consequences of mass extinction?

Mass extinctions have played many evolutionary roles, involving differential survivorship or selectivity of taxa and traits, the disruption or preservation of evolutionary trends and ecosystem organization, and the promotion of taxonomic and morphological diversifications”often along unexpected trajectories”after the …

What happened after the first mass extinction?

The next mass extinction is called Devonian extinction, occurring 365 million years ago during the Devonian period. This extinction also saw the end of numerous sea organisms. Although life on Earth was nearly wiped out, the Great Dying made room for new organisms, including the first dinosaurs.

What was the first mass extinction?

Ordovician

Are humans killing the planet?

It has been estimated that from 1970 to 2016, 68% of the world’s wildlife has been destroyed due to human activity. In South America, there is believed to be a 70 percent loss.

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