Earth had shorter days when dinosaurs lived, ancient shells show - Livescience.com

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1. Earth had shorter days when dinosaurs lived, ancient shells show  Livescience.com
2. Ancient clam fossil reveals Earth's day was shorter 70 million years ago  Space.com
3. 70 Million Years Ago, Days Were 30 Minutes Shorter, According to this Ancient Clam  Universe Today
4. The Ancient Earth Turned Half-Hour Faster 70 Million Years Ago  Interesting Engineering
5. View Full Coverage on Google News

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2020-03-12 12:09:00Z
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