Beer and mead content have been identified from certain examples. However, not all Beakers were drinking cups. Some were used as reduction pots to smelt copper ores, others have some organic residues associated with food, and still others were employed as funerary urns. They were used as status display amongst disparate elites. Bell Beaker people took advantage of transport by sea and rivers, creating a cultural spread extending from Ireland to the Carpathian Basin and south along the Atlantic coast and along the Rhône valley to Portugal, North Africa, and Sicily, even penetrating northern and central Italy. Its remains have been found in what is now Portugal, Spain, France (excluding the central massif), Ireland and Great Britain, the Low Countries and Germany between the Elbe and Rhine, with an extension along the upper Danube into the Vienna Basin (Austria), Hungary and the Czech Republic, with Mediterranean outposts on Sardinia and Sicily; there is less certain evidence for direct penetration in the east. Beaker-type vessels remained in use longest in the British Isles; late beakers in other areas are classified as early Bronze Age (Barbed Wire Beakers in the Netherlands, Giant Beakers (Riesenbecher)). The new international trade routes opened by the Beaker people became firmly established and the culture was succeeded by a number of Bronze Age cultures, among them the Únětice culture in Central Europe, the Elp culture and Hilversum culture in the Netherlands, the Atlantic Bronze Age in the British Isles and the Atlantic coast of Europe, and by the Nordic Bronze Age, a culture of Scandinavia and northernmost Germany–Poland. The Bell Beaker phenomenon in the Iberian Peninsula defines the late phase of the local Chalcolithic and even intrudes in the earliest centuries of the Bronze Age. A review of radiocarbon dates for Bell Beaker across Europe found that some of the earliest were found in Portugal, where the range from Zambujal and Cerro de la Virgen (Spain) ran , in contrast to the rather later range for Andalusia (). At present, no internal chronology for the various Bell Beaker-related styles has been achieved yet for Iberia. Peninsular corded Bell Beakers are usually found in coastal or near coastal regions in three main regions: the western Pyrenees, the lower Ebro and adjacent east coast, and the northwest (Galicia and northern Portugal). A corded-zoned Maritime variety (C/ZM), proposed to be a hybrid between AOC and Maritime Herringbone, was mainly found in burial contexts and expanded westward, especially along the mountain systems of the Meseta.