Which social class in spanish colonial were of mixed spanish and native american desert and worker on farms and ranchers

Mestizos is the answer. A man of mixed race, especially the offspring of a Spaniard and an American Indian.

pan-africanism or pan-africanism is a political, philosophical, cultural and social movement that promotes african twinning, the defense of the rights of african people and the unity of africa under a single sovereign state, for all africans, both africa as of the african diasporas.