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There are many theories as to why the stegosaurus (and indeed, all the dinosaurs) went extinct. The current prevailing theory is that a meteor hit the Earth and caused large amounts of CO2 to clog the atmosphere causing an ice age which was too cold for the cold-blooded reptiles.
Answer2: That dinosaurs existed abundantly throughout the earth, in an ancient landscape long ago vanished, is obvious from the fossil record. But these amazing creatures, along with countless other animal and plant kinds, passed out of existence. As to just when these things took place, paleontologist D. A. Russell states: "Unfortunately, existing methods for measuring the duration of events that happened so long ago are relatively imprecise."Fossil record does not yield its secrets so easily and that no one on earth today really knows all the answers.
Listing some speculations as to what happened to them, Princeton scientist G. L. Jepson stated:
"Authors with varying competence have suggested that dinosaurs disappeared because the climate deteriorated . . . or that the diet did. . . . Other writers have put the blame on disease, parasites, . . . changes in the pressure or composition of the atmosphere, poison gases, volcanic dust, excessive oxygen from plants, meteorites, comets, gene pool drainage by little mammalian egg-eaters, . . . cosmic radiation, shift of Earth's rotational poles, floods, continental drift, . . . drainage of swamp and lake environments, sunspots."-The Riddle of the Dinosaur.
It is apparent from such speculation that scientists are not able, with any certainty, to answer the question: What happened to the dinosaurs?
University of Arizona scientist David Jablonski concludes that 'for many plants and animals, extinction was abrupt and somehow special.Mass extinctions are not merely the cumulative effects of gradual dyings. Something unusual happened.' Their arrival was also abrupt. Scientific American observes: "The sudden appearance of both suborders of the pterosaurs without any obvious antecedents is fairly typical of the fossil record." That is also the case with dinosaurs. Their relatively sudden appearance and disappearance contradicts the commonly accepted view of slow evolution.
What else can I help you with?
What is the scientific name of a Stegosaurus?
There are four currently accepted species in the genus Stegosaurus. They are Stegosaurus armatus, Stegosaurus stenops, Stegosaurus sulcatus, and Stegosaurus longispinus.
How did Stegosaurus die?
he died because the hauman were not far from being born
What has happened to the stegosaurus?
Stegosaurus died out around 150 million years ago, and the last of its relatives, the Stegosauria, died out around 100 million years ago. Nobody knows exactly why they went extinct.
How many stegosaurus's have been found?
The remains of about 80 different Stegosaurus have been discovered. They belong to four different species, Stegosaurus armatus, Stegosaurus stenops, Stegosaurus sulcatus, and Stegosaurus longispinus.
When did the stegosaurus exist?
It is supposed that a lot of time ago,due to a meteorite collision with earth,the planet was surrounded with a huge cloud of dust so dense that sunlight was not able to reach the surface.Due to this plants and trees were not able to photosynthesize and eventually died,because of this vegetarian dinosaurs including the Stegosaurus died leading to the death of flesh eating dinosaurs that depended on vegetarian dinosaurs as their food.
What was life expectancy of stegosaurus?
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What is the 1 favorite dinosaur?
Stegosaurus? Stegosaurus?
How long was a stegosaurus you feet?
There were four different species of Stegosaurus. The largest was Stegosaurus armatus, which grew to be 30 feet long. Stegosaurus longispinus and Stegosaurus stenops both grew to be about 23 feet long.
What is the length of a stegosaurus?
There were four different species of Stegosaurus. The largest was Stegosaurus armatus, which grew to be 30 feet long and weighed 5.5 tons. Stegosaurus longispinus and Stegosaurus stenops both grew to be about 23 feet long.
What is the length of stegosaurus?
There were four different species of Stegosaurus. The largest was Stegosaurus armatus, which grew to be 30 feet long and weighed 5.5 tons. Stegosaurus longispinus and Stegosaurus stenops both grew to be about 23 feet long.
What is Stegosaurus size?
There were four different species of Stegosaurus. The largest was Stegosaurus armatus, which grew to be 30 feet long and weighed 5.5 tons. Stegosaurus longispinus and Stegosaurus stenops both grew to be about 23 feet long.
Does a stegosaurus have babies?
Yes, but stegosaurus are now extinct.
