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Dimetrodon borealis walks along a dry riverbed, north-central Pangaea, 270 mya

Dimetrodon borealis walks along a dry riverbed, north-central Pangaea, 270 mya


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#dimetrodon #synapsid #sphenacodont #permian #dimetrodon borealis #palaeozoic #extinct #gallery 
Extinction Illustrated@Extinction Illustrated
Tue, 29 Aug 2017 16:00:32
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