For the 1507 map, Waldseemüller used the geographic books of the second–century–AD astronomer Ptolemy to represent the north coast of Africa. The depiction of the north coast does not include knowledge gained by sailors and explorers of the fifteenth century.
The size of South America is greatly reduced and, even though this is a later map, Waldseemüller no longer shows a Pacific Ocean.
CARTA MARINA 1516
The 1516 map shows the north coast of Africa much as one would expect to see it today, and the depiction is obviously based on more current geographical knowledge.