Different regional types are known: Brandivy in Morbihan, Dahouet and Plurien on the North coast, Tréhou in Finistère. The miniature types of Maure-de-Bretagne, Ille-et-Vilaine and Couville are typical of Upper Brittany. Copper was imported from Spain as plano-convex ingots, as found in the hoard of Penfoul, Landelau. Settlements have rarely been excavated, Ploubazlanec at the mouth of the Trieux is an example of a fortified village. The Museum of PreHistory in Carnac has large quantities of Late Bronze Age bronze and copper artifacts from the Atlantic Bronze Age culture. This culture was a maritime trading-networked culture that included Brittany and most of the rest of France, the other Celtic nations, England, Spain and Portugal. According to John T. Koch, Barry Cunliffe, Karl, and Wodtko, Celtic languages developed in the intense interactions of this culture with the Tartessian language the first written language so far discovered from this era, but this view stands in contrast to the more generally accepted view of Celticists that their origin lies with the Central European Hallstatt culture and that Tartessian cannot be classified as Celtic at all. Iron Age A variety of tribes are mentioned in Roman sources, like the Veneti, Armoricani, Osismii, Namnetes and Coriosolites. Strabo and Poseidonius describe the Armoricani as belonging to the Belgae. Armorican gold coins have been widely exported and are even found in the Rhineland. Salterns are widespread in Northern Armorica, for example at Trégor, Ebihens and Enez Vihan near Pleumeur-Bodou (Côtes-d'Armor) and the island of Yoc'h near Landuvez (Finistère) of late La Tène date. An estimated 40–55 kg of salt per oven were produced at Ebihens. Each oven was about 2 m long. The site dates to the end of the early La Tène or the middle La Tène period. Numerous briquetage-remains have been found. At Tregor, boudins de Calage (hand-bricks) were the typical form of briquetage, between 2,5 and 15 cm long and with a diameter between 4–7 cm. At the salterns at Landrellec and Enez Vihan at Pleumeur-Bodou the remains of rectangular ovens have been excavated that are 2,5–3 m long and ca. 1 m wide and constructed of stones and clay. On the Gulf of Morbihan about 50 salterns have been found so far, mainly dating to the final La Téne period. Later history References Bibliography Bowen, E. G. (1977) Saints, Seaways and Settlements in the Celtic Lands. Cardiff: University of Wales Press Monnier, Jean-Jacques