Quaternary system │Alluvial division. „ │Quaternary division. „ │Drift division. ────────────────────────────┼────────────────────────────┬──────────── Tertiary system │These strata are included in│ │ the next lower division. │ ────────────────────────────┼────────────────────────────┼──────────── │Long Island division. Equals│New Red │ the Tertiary and │ system of Upper Secondary system │ Cretaceous marls, sands, │ Emmons and │ and clays of the coastal │ Hall. │ plain of New Jersey. │ „ │Trappean division. The │ „ │ Palisades │ „ │Red Sandstone division. │ „ Coal system of Mather, and Carboniferous system of Hall. Old Red system of Catskill Mountains of Emmons; Catskill division of Mather and Hall; and Catskill group of Vanuxem. _According to Hall 1843, and essentially Vanuxem 1842._ │Chemung, Portage or Nunda (divided into │ Cashaqua, Gardeau, Portage), Genesee, Erie division [Devonian] │ Tully, Hamilton (divided into │ Ludlowville; Encrinal, Moscow), and │ Marcellus. ────────────────────────────┼──────────────────────────────────────── │Corniferous, Onondaga, Schoharie, Helderberg series │ Cauda-alli, Oriskany, Upper [Devonian-Silurian] │ Pentamerus, Encrinal, Delthyris, │ Pentamerus, Waterlime, Onondaga salt │ group. ────────────────────────────┼──────────────────────────────────────── Ontario division [Silurian] │Niagara, Clinton, and Medina. ────────────────────────────┼──────────────────────────────────────── │Oneida or Shawangunk, Grey sandstone, Champlain division │ Hudson River group, Utica, Trenton, [Silurian-Ordovician-Upper│ Black River including Birdseye and Cambrian] │ Chazy, Calciferous sandrock, and │ Potsdam. _According to Emmons 1842, Mather 1843, Vanuxem 1842, Hall 1843._ Taconic System [Ordovician │Granular quartz, Stockbridge limestone, and Lower Cambrian] │ Magnesian slate, and Taconic slate. ────────────────────────────┼──────────────────────────────────────── Primary or Hypogene system │Metamorphic and Primary rocks.