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Question
In which period, birds in geological development of earth arose?
In which period, birds in geological development of earth arose?
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Solution
The correct option is C Jurassic
Jurassic is a geological period which is marked by the evolution of first bird from the theropod dinosaurs. In the Jurassic, birds evolved from small specialized coelurosaurian theropods, and are today represented by 10,000 living species.
In modern birds, the body is typically held in a somewhat upright position, with the upper leg (femur) held parallel to the spine and with the forward force of locomotion generated at the knee. The common features which prove the evolution of birds from the theropod dinosaurs are a furcula (wishbone), air-filled bones, brooding of the eggs, and in coelurosaurs, at least feathers.So, the correct answer is option C.
Jurassic is a geological period which is marked by the evolution of first bird from the theropod dinosaurs.
In the Jurassic, birds evolved from small specialized coelurosaurian theropods, and are today represented by 10,000 living species.
In modern birds, the body is typically held in a somewhat upright position, with the upper leg (femur) held parallel to the spine and with the forward force of locomotion generated at the knee.
The common features which prove the evolution of birds from the theropod dinosaurs are a furcula (wishbone), air-filled bones, brooding of the eggs, and in coelurosaurs, at least feathers.
So, the correct answer is option C.
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