First use of name on diagram of Pleistocene age in Indiana. Name appears above Jessup formation and below Lagro formation (both new). Name credited to W.J. Wayne (in prep).

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

Name Trafalgar Formation formally proposed for Pleistocene unit exposed along Buckhart Creek in south-central IN. Composed primarily of calcareous conglomeratic mudstone, a compact but uncemented sandy, silty matrix that contains fairly abundant pebbles and cobbles. Contains scattered beds and lenses of silt, sand, and gravel. Thickness as much as 24.5 ft at type section. Includes (ascending) Center Grove Till Member and Cartersburg Till Member (both new). Members are separated by thin fossiliferous silt bed referred to as VERTIGO ALPESTRIS OUGHTONI beds. Overlies Lagro Formation; underlies Jessup Formation. Sediments included in Trafalgar have been correlated, in part at least, with sediments of Tazewell Substage and are included in lower part of Woodfordian Substage of Frye and Willman's (1960) classification.

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

Trafalgar Formation in west-central IN, here stratigraphically extended to include unnamed till resembling Batestown Till Member of Wedron in IL. Unit described as yellow-brown to gray till, loam, soil, and loess. Overlies Snider Till Member of Wedron Formation, here extended from IL.

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