Key quote from the article:
The Book of Mormon has frequently been charged with containing numerous anachronistic items including certain animals, plants, metals, textiles, and weapons. In all instances, however, there is the possibility that (a) such things were once in the Americas but the evidence has either disappeared or has not yet been found, or (b) Book of Mormon labels are based on the re-labeling of New World items with familiar Old World labels. To claim that things did not exist because they have not been found is to commit the logical fallacy of arguing from ignorance or silence. According to a famous and generally accepted archaeological dictum, the absence of evidence is not evidence of absence.
