. In which periods gymnosperms were present?
(A) Jurassic and cretaceous
(B) Triassic and jarassic
(C) Triassic and cretaceous
(D) None
Answers
Answered by
7
Answer:
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Answered by
5
Answer:
You should go with "none"..
Explanation:
Gymnosperms that were presumed to be ginkgophytes existed as far back as the Permian Period. ... Pollen grains similar to those of Ephedra and Welwitschia are found as far back as the Permian Period. Remains of possible gnetophytan plants occur in Upper Cretaceous deposits (formed 100.5 million to 66 million years ago).
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