Ross T. Christensen
Christian C. Karam is a Brazilian archaeology student who has written a paper with the controversial, if not provocative, title of Phoenicians in Brazil(a). In it he proposes that an encounter with an extraterrestrial body caused a global catastrophe, which caused a large part of the Andes to be uplifted, the Sahara to be dried out and Atlantis in the Atlantic to be submerged. He dates this event to around 9500 BC and believes that the Atlantean survivors fled to Africa.
Perhaps the first to suggest that the Phoenicians visited Brazil was Georgius Hornius in the 17th century. The matter was dealt with in greater detail(d) by the Austrian professor of history, Ludwig Schwennhagen, who flourished at the beginning of the 20th century. A Hungarian website(c) offers more on the development of this claim.
Karam names the Phoenicians as the thalassocratic successors to the Atlanteans. The main portion of his paper concerns the possibility or as he sees it, the probability, of Phoenician visits to and even colonisation of Brazil.
Ross T. Christensen (1918–1990) an American archaeologist supported the idea of Phoenicians in America. However, in my view, his early work as a Mormon missionary must bring into question his objectivity. Further evidence in support of Phoenicians in Brazil is presented elsewhere(b).
(d) https://www.academia.edu/7848641/Fen%C3%ADcios_no_Brasil_parte_1_Ludwig_Schwennhagen (Portuguese) (offline Feb. 2016)