Likewise, the seemingly exact molecular dating is doubtful as it assumes a molecular clock that may or may not be correct, and of course the assumption that the ancestor of all robins was similar in colouration to superbus and not the continental birds is, being inferred from their model of colonisation, entirely conjectural.
Do mesmo xeito, a datación molecular aparentemente exacta é dubidosa, xa que supón un reloxo molecular que pode ser correcto ou non, e, por suposto, a suposición de que o devanceiro de tódolos paporroibos fose semellante en cor a "superbus" e non ás aves continentais, deducíndose do seu modelo de colonización, é completamente conxetural.