One.The appearance of a dinosaur
Dinosaurs were a class of reptiles that appeared in the Mesozoic Era (Triassic, Jurassic, and Cretaceous).
Two. The origin of the name
In 1841, Richard [2], a British scientist, looked at some of the fossilized bones of a lizard, which he thought was a prehistoric animal, named after the dinosaur, which means "the horror of a lizard."".
Three. The extinction of Dinosaurs
The dinosaurs disappeared 65 million years ago at the end of Cretaceous, and became a mystery in the history of the evolution of the earth.
Extinction hypothesis 1: the asteroid impact hypothesis two: the hypothesis of the extinction of temperature, the extinction hypothesis, three: the theory of the extinction hypothesis of angiosperm poisoning: Four
Four. Body chart
NO.10 Menxi - long 22 meters, 3.5 meters in height of -4 meters, the weight can reach 26 tons
NO.9 Apatosaurus (Brontosaurus)
Body length of 22-23 meters in weight can reach 26 tons
NO.8 - long wrist in 23 meters, 12 meters high, weight can reach 40 tons
NO.7 very general body length can reach 25 meters and weighs only 12-15 tons
The body length of 29-33 in the NO.6 earthquake in metres and weighing 22-27 tons
NO.5 Poseidon - long can reach 30-34 meters in height is 17 meters, the weight can reach 50-60 tons
NO.4 super - long 33-34 meters, the weight can reach 60 tons
NO.3 Argentina - long 30-40 meters that weighing up to 90 tons
NO.2 Puerta Wright - long 35-40 meters and weighing up to 80-110 tons in his chest with an elephant.
NO.1 fragile double cavity in 40 to 62 meters long body weight up to 130 tons.
Five. Knowledge quiz
1 the name of the dinosaur
What is the top 2 in the list?
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