Essay on dinosaur for children
The largest dinosaurs were herbivores plant-eaterssuch as Apatosaurus and Brachiosaurus.
Perhaps something fell the sky and struck the planet causing a huge dust cloud, utterly shutting out the sun and forcing the dinosaurs into extinction. Early saurischians resembled early ornithischians, but differ from modern crocodile s.
The date of the early dinosaur genus Eoraptor at Adaptive radiation Edit Dinosaurs were a varied group of animals. The big sauropods could never have reached so large a size without their pillar-like legs.
Saturnalia may be a basal saurischian or a prosauropod. One theory on how the dinosaurs became extinc The second type of extinction is called mass extinction.
Saurischians differ from ornithischians by keeping the ancestral configuration of bones in the pelvis shown in a diagram above. There are four main patterns of organization of an essay The others are basal saurischians.
This fits well with the idea that they were warm-blooded, and that the origin of birds can be traced to a line of small theropods. Limitations Edit Despite their great success over a long period, there were life-styles which the dinosaurs never evolved.
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