What are three pieces of evidence used to support the theory that dinosaurs became extinct as a result of a comet impact about 65 million years ago apex?
Using fossils and geographical clues, paleontologists have determined with some certainty that a meteor, not a volcano killed the dinosaurs. Although dinosaurs died out, some birds survived and today’s birds are the direct descendants of the dinosaurs.
What is the evidence for why dinosaurs went extinct?
A big meteorite crashed into Earth, changing the climatic conditions so dramatically that dinosaurs could not survive. Ash and gas spewing from volcanoes suffocated many of the dinosaurs. Diseases wiped out entire populations of dinosaurs. Food chain imbalances lead to the starvation of the dinosaurs.
What are two of the events scientists think could have caused the extinction of the dinosaurs?
In January 2020, scientists reported new evidence that the extinction event was mostly a result of the asteroid impact and not volcanism. Other causal or contributing factors to the extinction may have been the Deccan Traps and other volcanic eruptions, climate change, and sea level change.
What are the three things that you know about the extinction of the dinosaurs?
Many theories have been suggested for the extinction of the dinosaurs. Some of these have dealt with: toxic volcanic gases and dust. asteroid impact….DINOSAUR EXTINCTION THEORIES
- Triassic (approx. 250 – 200Ma)
- Jurassic (approx. 200 – 145Ma)
- Cretaceous (approx. 145 – 65Ma)
What is the closest animal to a human?
chimpanzee
Are turtles related to dinosaurs?
Scientists place turtles in the newly named group ‘Archelosauria’ with their closest relatives: birds, crocodiles, and dinosaurs. Instead, authors place turtles in the newly named group “Archelosauria” with their closest relatives: birds, crocodiles, and dinosaurs.
Are chickens dinosaurs yes or no?
Ask your average paleontologist who is familiar with the phylogeny of vertebrates and they will probably tell you that yes, birds (avians) are dinosaurs. Using proper terminology, birds are avian dinosaurs; other dinosaurs are non-avian dinosaurs, and (strange as it may sound) birds are technically considered reptiles.