Index Fossils - the keys to dating layers
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In this episode, I talk about index fossils - what are they and what makes one fossil better than another for dating layers in a sedimentary sequence.   I aven leave you pondering what human product would make a great index fossil. Visit our GEOetc Members Section - Over 100 teaching resources that are classroom-ready to help you teach Earth science. Check them out! Support the show
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