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Nilanjan Bhowmick AIR 3, CSIR NET (Earth Science)
Gurmeet Singh posted an Question
November 09, 2020 • 19:21 pm
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30 points
30 points
- IIT JAM
- Geology (GG)
Will c be the correct ans? - mesozoic
6. Character of sutures is the sole criterion for recognizing the evolution of ammonoids dur-, ing the: A. Early Paleozoic Periods B. Late Paleozoic Periods C. Mesozoic Era D. Cenozoic Era (IIT-JAM 2005)
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Rahul kumar Best Answer
Answer: Mesozoic Ammonoids were dominant during Mesozoic Era. The suture pattern of ammonoids evolve with time and worked as a sole criterion for recognising the evolution of the ammonoids with time. The suture of ammonoids were simple in early time and got complex with time. Refer to the attached figure for details.