many new species often appear at the same time
They are the end-Ordovician extinction, end-Devonian extinction, end-Permian extinction, the Triassic extinction, end-Cretaceous extinction.
There were five major extinction events in the past. They are called the Cretaceous-Tertiary (or K-T) extinction event, the late Devonian mass extinction, the Permian mass extinction, the Ordovician-Silurian mass extinction and the Triassic-Jurassic mass extinction event.
Meteor, extinction, atmosphere, death. There's a lot more... too many to name.
Some of the major topics paleontologists discuss include: How did dinosaurs die out? Were dinosaurs warm blooded? Which theropods had feathers and which ones only had scales? How active were dinosaurs? How fast could they run?
Hunting was a major cause of extinction in the United States in the 19th century. Men would hunt the animals for their meats, skins, and fur.
The existence and extinction of the dinosaurs.
A major extinction event.
Protect species from Extinction. Zack rose (;
The major extinction that preceded the Mesozoic era is called the Permian-Triassic extinction event, also known as the Great Dying. It occurred around 252 million years ago and is considered the most severe mass extinction event in Earth's history, wiping out approximately 96% of marine species and 70% of land species.
i dont know y u askin me ;D
The three major categories of evidence provided by the fossil record are body fossils (actual remains of organisms), trace fossils (impressions or structures left by past organisms), and chemical fossils (organic molecules preserved in rocks). These categories help scientists understand past life forms, their environments, and evolution over time.
There have been five major extinction events on Earth, with the most well-known being the Permian-Triassic Extinction, often called the "Great Dying," which occurred around 252 million years ago and wiped out about 90% of marine species. The most recent major extinction event is the Cretaceous-Paleogene extinction, which occurred around 66 million years ago and led to the extinction of the dinosaurs.