A Mesolithic culture, named after Larne, Ireland, and found only on sites close to coasts and estuaries in western Scotland and eastern Ireland. It is characterized by shell middens and the early toolkits include leaf-shaped points made on a flake, the oldest unambiguous implement in Ireland, and scrapers. Some are dated to 6000 BC. Later assemblages contain more flakes than blades and include tranchet axes and very small scrapers. . More recent work casts doubt on the antiquity of the people who were responsible for the Larnian industry; association with Neolithic remains suggests that they should be considered not as Mesolithic but rather as contemporary with the Neolithic farmers. The Larnian could then be interpreted as a specialized aspect of contemporary Neolithic culture. Lake and riverside finds, especially along the River Bann, show a comparable tradition. A single radioactive carbon date of 5725 +/- 110 BC from Toome Bay, north of Lough Neagh, for woodworking and flint has been cited in support of a Mesolithic phase in Ireland.