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Most of animals don't leave any fossils, especially without skeleton. Special conditions are required for fossilification [1]. 1. https://www.americangeoscienc
by nuccy 5y ago
Most of animals don't leave any fossils, especially without skeleton. Special conditions are required for fossilification [1].
1. https://www.americangeosciences.org/education/k5geosource/content/fossils/under-what-conditions-do-fossils-form https://www.americangeosciences.org/education/k5geosource/co...