A genus of extinct, large mammal resembling a pig or hippopotamus from the Tertiary period, belonging to the family Anthracotheriidae.
From Greek 'anthracis' (coal/charcoal, referring to dark fossils) and 'therion' (beast), with Latin '-um' (noun ending). Described in the 19th century after fossil discovery in coal deposits.
Anthracotheria were weird evolutionary experiments—they lived alongside early primates and ungulates but didn't survive, and we're still figuring out exactly what their evolutionary role was because they seem to be related to both pigs and whales!
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