At one time, Latin American census categories have used such classifications, but in Brazilian censuses since the Imperial times, for example, most persons of multiracial heritage, except the Asian Brazilians of some European descent (or any other to the extent it is not clearly perceptible) and vice versa, tend to be thrown into the single category of "pardo", but race lines in Brazil do not denote ancestry but phenotype, and as such a westernized Amerindian of copper-colored skin is also a "pardo", a "caboclo" in this case, despite being not multiracial, but a European-looking person with one or more African or Indigenous American ancestor is not a "pardo" but a "branco", a white Brazilian. The same applies to "negros" or Afro-Brazilians and European or Amerindian ancestors. Most Brazilians of all racial groups (except Asian-Brazilians and natives) are, to some extent, mixed-race, according to genetic research.