A genus of extinct horned mammals from the Pliocene epoch, known for their large impressive antlers.
From Latin ego ('I', perhaps meant humorously) combined with Greek keras ('horn'), literally meaning 'self-horned' or 'ego-horned'—possibly a humorous or self-aggrandizing scientific name.
Egocerus literally means 'I am horns'—a scientist somewhere got clever and named this entire extinct animal genus with basically the prehistoric equivalent of a humble-brag, which is hilarious and very 19th-century scientist.
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