which retiles are in danger of extintion?
Dinosaurs and marine reptiles.
Triaddic :)
If the Cretaceous mass extinction had not occurred, reptiles would today be the largest land animal in the world. At the time, reptiles were the largest animal group on Earth.
The Permian was the last period of the Paleozoic Era, spanning 299-351 million years ago. It was a time during which reptiles diversified. It ended with the Permian-Triassic extinction event, the largest mass extinction in Earth's history.
No. Whales evolved around 55 million years ago, about 10 million years after the extinction of non-avian dinosaurs. This is likely because the same extinction even wiped out large marine reptiles.
The mass extinction that is believed to have eliminated larger dinosaurs 65 million years ago. Smaller dinosours survived, their descendants are today's reptiles. The mass extinction is believed to have been caused by an asteroid that collided with Earth. For more information, read the Wikipedia article on "Cretaceous-Paleogene extinction event", or search for this term on your favorite search engine.
the evolution of mammal like reptiles and the biggest mass extinction ever on the history of the earth which killed 90% of all life
Reptiles, birds, and mammals are all members of Reptilomorpha. There are 23,000 living species of Reptilomorpha. The other Reptilomorpha died out in the Permian mass extinction along with many other kinds of animals. There are many theories but still no agreement on the cause of the extinction event.
65 million years ago, at the end of the Late Cretaceous in the K/T Mass Extinction Along with all Dinosaurs and Sea Reptiles and Aminotes a
Among other things, wood, many tropical plants and several species of mammals, birds and reptiles. Some of them are illegally exported as such species are endangered or on the verge of extinction.
The most recent one was the Cretaceous-Tertiary event, about 65 million years ago. Prior to it, reptiles were still the dominant species on earth. After it reptiles - especially the huge ones (dinosaurs) gave way to mammals as the dominant species. An event after which the distribution of earth's fauna changed dramatically.