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Social Studies, 30.11.2021 19:30 emmanuel96

This diagram shows the ranges of fossils of early seed plants that are now extinct. In a series of rock layers, which two fossils are the BEST index fossils? Q: A: A) Leptocycas and Bjuvia B) Medullosa and Spermopteris C) Stutcliffia and Archaeopteris D) Spermopteris and Androstrobus

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This diagram shows the ranges of fossils of early seed plants that are now extinct. In a series of r...
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