We found a matchYour institution may have access to this item. Find your institution then sign in to continue.TitleEarly penguin fossils, plus mitochondrial genomes, calibrate avian evolution.AuthorsSlack KE; Jones CM; Ando T; Harrison GL; Fordyce RE; Arnason U; Penny DPublicationMolecular biology and evolution, 2006, Vol 23, Issue 6, p1144ISSN0737-4038Publication typearticleDOI10.1093/molbev/msj124