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Mayur Anil Badhe posted an Question
March 01, 2021 • 01:33 am 30 points
  • IIT JAM
  • Geology (GG)

Sir,how to solve this que

Consider a Paleozoic sequence in which fossils either appears at the boundary of period or extinct at the boundary of period (for example: appear at the Cambrian boundary and disappear at the end of Ordovician). In such a sequence how many taxon range can be established

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    Sajan sarthak

    Here we can establish 6 taxon range zone.

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    Sir yaha to alag hi ans diya hai

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    YAA THATS CORRECT TOO ,,I THOUGHT THAT QUESTION IS ASKING FROM THE DIAGRAM ..BUT THEY ARE ASKING ABOUT THE POSSIBLE TAXON RANGE ZONE THEN IT WILL BE 7 C 2 = 21 APPLICATION OF COMBINATION.(MATH).MY APPROACH IS TOO CORRECT .A TAXON RANGE ZONE IS DEFINED BY TAXA ( ORGANISM/SPECIES ) APPERS AT BEGINNING OF BOUNDARY AND DISAPPEARED AT END OF A BOUNDAAY.

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    TOTAL POSSIBLE TAXON RANGE ZONE IS 21 .

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    IN THE FIGURE ALL THE LINES ARE TAXON RANGE ZONE

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