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Evolution of toothed birds occurred about ______ crore years ago.

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in Biology – Class 12 by (271k points)
Evolution of toothed birds occurred about ______ crore years ago.

(a) 5.4 – 5.9

(b) 5 – 6

(c) 3.5

(d) 7.1

This question was addressed to me during an interview.

This intriguing question comes from A Brief Account of Evolution of Animals topic in chapter Evolution of Biology – Class 12

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The correct choice is (a) 5.4 – 5.9

To explain: Evolution of toothed birds occurred about 5.4 – 5.9 years ago. Birds like archaeopteryx evolved during this period. Also, marsupials evolved from prototherians. This all happened during the Jurassic period.

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