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  4. The gymnosperms formed the dominant vegetation on the earth during the geological period called

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Q. The gymnosperms formed the dominant vegetation on the earth during the geological period called

AMUAMU 1999

Solution:

: Gymnosperms are the small group of plants which constitutes a subdivision of spermatophyte or phanerogams. Gymnosperms are the most primitive seed plants. Age of higher gymnosperms is mesozoic era. The forest of triassic period of mesozoic era were formed of highly developed gymnosperms represented chiefly by conifers and cycads.