"H. georgicus" is often classified as Homo erectus georgicus. The classical textbook definition of "H. erectus" included a brain size range of between 9001150 ccs. If the "georgicus" specimens and the Flores specimens ("Homo floresiensis") are included in "H. erectus", then the range of brain capacities is two-fold, from 600 ccs to 1150 ccs. "Homo ergaster" is also considered by some to be a subspecies of "H. erectus". Size has something to do with it: both the "georgicus" and "floriensis" were much smaller than the classic "erectus", which was as tall as modern man. The classification of all these species or subspecies is provisional at present, and still being debated.