Letters to the Editor 19687 Share this:EmailFacebookTwitterPinterestPocketRedditPrint By Science News May 31, 2006 at 11:00 am Are the dates quoted in this article correct? I didn’t think Homo existed as a genus 840,000 years ago. David AdamsBoothwyn, Pa. Fossil finds indicate that the Homo genus originated roughly 2.4 million years ago .—B. Bower