Wright, Timothy F.; Schirtzinger, Erin E.; Matsumoto, Tania; Eberhard, Jessica R.; Graves, Gary R.; Sanchez, Juan J.; Capelli, Sara; Muller, Heinrich; Scharpegge, Julia; Chambers, Geoffrey K.; Fleischer, Robert C.
(2008)
The question of when modern birds (Neornithes) first diversified has generated much debate among avian systematists. Fossil evidence generally supports a Tertiary diversification, whereas estimates based on molecular dating ...
