GET OUR AWESOME NEW POSTER! http://bit.ly/13GPNM4 Scientists unearthed a 419 million-year-old Placoderm fossil, called the Entelognathus, that fills one of the most important evolutionary gaps that boggled the minds of scientists for like, a really long friggin' time. Our Sources: http://bit.ly/1dLvqAa http://bit.ly/18rw5p2 More stories at: http://www.sourcefed.com or check out: http://youtube.com/sourcefed for our 5 daily videos or anything else we've ever done. Follow us on Twitter: http://twitter.com/sourcefed Follow us on Tumblr: http://sourcefed.tumblr.com/ Like us on Facebook: http://on.fb.me/xQDV8M Philly D OFFICIAL APP for instant updates: http://bit.ly/aIyY0w Get your SourceFed Posters here: http://bit.ly/SourceFedPosters Last Year on SourceFed: http://bit.ly/16CrQCo P.O. Box address: Attn: SourceFed 6433 Topanga Canyon Blvd #805 The @SourceFed Hosts: @joebereta Music: @ronaldjenkees @Hagemeister