Is name proposed for second (of four, ascending) Paleozoic sequence, from Tippecanoe Co, IN, in Illinois basin. Sequences ("operational units" established to facilitate interregional facies mapping) are assemblages of strata separated by objective horizons; should be considered as rock units, assemblages of formations and groups. Wells drilled in the area penetrate a full section of the sequence from base of New Albany shale to base of St. Peter sandstone. Table 2 shows formations involved in limits of Tippecanoe at various localities on mid-America craton; fig. 9 shows distribution of basal Tippecanoe strata; fig. 10 is isopach and lithofacies map; fig. 11 is tectofacies map. Great areal extent of St. Peter-type sandstones noted to provide easy recognition of base of sequence; elsewhere Trenton-type limestones provide ready recognition. Age of strata in the sequence in most cases is Chazyan to Mohawkian (Middle Ordovician).

Source: GNU records (USGS DDS-6; Denver GNULEX).