39Jones, Carleton. Temples of Stone: Exploring the Megalithic Tombs of Ireland. Cork: Collins, 2007. 14.
The Beaker Period is named after a distinctive pottery type: a beaker with an inverted bell-shaped profile, usually red or red-brown in color, with horizontal bands of patterns. (Wikipedia) The Beaker Period is also referred to as the Final Neolithic, the Early Bronze Age, or the Copper Age.