Keywords: Age-of-Man-wiki.jpg Stock 7465800 purchased and donated by Kosi Gramatikoff User Kosigrim Haeckel's Paleontological Tree of Vertebrates c 1879 <br>The evolutionary history of species has been described as a tree with many branches arising from a single trunk While Haeckel's tree is somewhat outdated it illustrates clearly the principles that more complex modern reconstructions can obscure Transferred from http //en wikipedia org en wikipedia to Commons by User Legoktm using http //tools wikimedia de/~magnus/commonshelper php CommonsHelper ~ 1879 Ernst Haeckel PD-old Original upload log page en wikipedia Age-of-Man-wiki jpg 2007-04-11 03 30 Kosigrim 1475×2400×8 588200 bytes <nowiki>stock 7465800 purchased and donated by Kosi Gramatikoff User Kosigrim </nowiki> History of biology Timelines Phylogenetic trees of humans Old phylogenetic trees |