The HBW/BirdLife and Clements checklists place the demoiselle crane and blue crane in the genus Anthropoides, and the wattled crane in the monospecific genus Bugeranus, leaving only the red-crowned, whooping, common, hooded, and black-necked cranes in the genus Grus.[8][9][10][11]
Several other fossil gruiforms are now considered not to belong here. "Grus" prentici is now in Paragrus, "Grus" princeps, "Grus" excelsa and "Grus" hordwellianus are placed in Palaeogrus, and "Grus" excelsa in Balearica. "Grus" marshi belongs in Aletornis.
More uncertain is the position of Probalearica (variously considered Late Oligocene to Middle Pliocene but probably Late Miocene) from Golboçica (Moldavia) and maybe elsewhere. It is usually regarded a nomen dubium but might belong into Grus. "Grus" conferta (Late Miocene/Early Pliocene of Contra Costa County, USA) is apparently too different from the modern genus to be placed herein, but its affiliations are not well resolved.
^Archibald, G.W.; Meine, C.D.; Garcia, E.F.J.; Kirwan, G.M. (2017). del Hoyo, J.; Elliott, A.; Sargatal, J.; Christie, D.A.; de Juana, E. (eds.). "Demoiselle Crane (Anthropoides virgo)". Handbook of the Birds of the World Alive. Lynx Edicions. Retrieved 12 November 2017.
^Archibald, G.W.; Meine, C.D.; Garcia, E.F.J. (2017). del Hoyo, J.; Elliott, A.; Sargatal, J.; Christie, D.A.; de Juana, E. (eds.). "Blue Crane (Anthropoides paradiseus)". Handbook of the Birds of the World Alive. Lynx Edicions. Retrieved 12 November 2017.
^Archibald, G.W.; Meine, C.D.; Garcia, E.F.J. (2017). del Hoyo, J.; Elliott, A.; Sargatal, J.; Christie, D.A.; de Juana, E. (eds.). "Wattled Crane (Bugeranus carunculatus)". Handbook of the Birds of the World Alive. Lynx Edicions. Retrieved 12 November 2017.