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Question
Pygostyle is absent in the order
Pygostyle is absent in the order
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Solution
The correct option is A Struthioniformes
Pygostyle refers to a number of the final few caudal vertebrae fused into a single ossification, supporting the tail feathers and musculature.
Struthioniformes include flightless terrestrial birds like true ostriches whose legs are strongly developed, each with two toes with stunted nails. They lack a pygostyle.
Thus, the correct answer is (A), Struthioniformes.
Pygostyle refers to a number of the final few caudal vertebrae fused into a single ossification, supporting the tail feathers and musculature.
Struthioniformes include flightless terrestrial birds like true ostriches whose legs are strongly developed, each with two toes with stunted nails. They lack a pygostyle.
Thus, the correct answer is (A), Struthioniformes.
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