Shale, sandstone, conglomerate.
Shale, siltstone; Roricks Glen Shale.
In west: Cashaqua and Middlesex Shales. In east: Rye Point Shale; Rock Stream ("Enfield") Siltstone; Pulteney, Sawmill Creek, Johns Creek, and Montour Shales.
Beers Hill, Dunn Hill, Millport, and Moreland Shales; Grimes Siltstone.
Nunda: sandstone, shale; West Hill: shale, siltstone; Corning Shale.
West River Shale; Genundewa Limestone; Penn Yan and Geneseo Shales; all except Geneseo replaced eastwardly by Ithaca Formation-shale, siltstone and Sherburne Siltstone.