 Greenway also suggested that the scarlet macaw and the Cuban macaw formed a superspecies with the Lesser Antillean macaw and other hypothetical extinct species suggested for Jamaica and Hispaniola.The English paleontologist Julian Hume proposed in 2012 that the similarity between the Lesser Antillean macaw and the scarlet macaw indicates that they were close relatives, and that the Guadeloupe species may have descended from the mainland macaw.A small parrot ulna found on the Folle Anse archaeological site on Marie-Galante, an island in the Guadeloupe region, was assigned to the Lesser Antillean macaw by the ornithologists Matthew Williams and David Steadman in 2001.