James Dwight Dana and the Taconic controversy

摘要

James D. Dana, being out of the country at the time, took no part in the early stages of the Taconic controversy (1840-1842). When he returned, he simply accepted the opinion of the majority, who rejected Emmons' claim that the Taconic System is separate from and entirely older than the New-York System-the well exposed and clearly displayed Lower and Middle Paleozoic stratigraphic sequence in New York State then being established by Emmons and his col- leagues.