Taconic Orogeny  search
BTChronostratigraphic Units
 .Phanerozoic
 ..Paleozoic
 ...Taconic Orogeny
UFTaconian Orogeny
RTOrdovician
 Silurian
 Canada
 United States
 orogeny
 Appalachians
SNAn orogeny in the latter part of the Ordovician period, named for the Taconic Range of eastern New York State and well developed through most of the Northern Appalachians in U.S. and Canada. Before 1978, search Taconic AND orogeny; Taconian.