 More distantly related is the contemporaneous "Apatosaurus", which is still considered a diplodocid, although not a diplodocine, as it is a member of the sister subfamily Apatosaurinae.The Portuguese "Dinheirosaurus" and the African "Tornieria" have also been identified as close relatives of "Diplodocus" by some authors.The Diplodocoidea comprise the diplodocids, as well as dicraeosaurids, rebbachisaurids, "Suuwassea", "Amphicoelias" and possibly "Haplocanthosaurus", and/or the nemegtosaurids.