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view wisdom/lystrosaurus @ 9252:6b4cdb914244
<oerjan> learn An union is the opposite of an ion.
author | HackBot |
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date | Thu, 13 Oct 2016 00:22:40 +0000 |
parents | 7f957c1f4661 |
children | 5a79c46f7c02 |
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lystrosaurus is a genus of Late Permian and Early Triassic Period dicynodont therapsids, which ruled the world around 250 million years ago.