Dimetrodon

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Sunday 7th March

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Dimetrodon (/dˈmtrədɒn/[1] or /dˈmɛtrədɒn/,[2] meaning “two measures of teeth”) is an extinct genus of non-mammalian synapsid that lived during the Cisuralian (Early Permian), around 295–272 million years ago (Ma) [Credit: Wikipedia]