GalliformesOpisthocomiformesThreskiornithidaeArdeidaeCiconiidaeGaviidaeDiomedeidaeOceanitinaeProcellariidaeScopidaeBalaenicipitidaePhaethontidaeLimnofregataFregatidaePelecanidaePlotopteridaeWaimanuIcadyptesSpheniscidaeAnhingidaePhalacrocoracidaeSulidaeOsteologyMaximum ParsimonyBased on reanalysis of the original matrix.Mayr_etal_2015aa