Treetrunk coffin
A treetrunk coffin, hollowed out of a single massive log, is a feature of some prehistoric elite burials over a wide geographical range, especially in Northern Europe and as far east as the Balts, where cremation was abandoned about the 1st century CE, as well as in central Lithuania, where elites were also buried in treetrunk coffins. The practice survived Christianization into the Middle Ages. The coffin in which the body of King Arthur, said to have been discovered at Glastonbury Abbey in 1191, was described by the contemporary chronicler Giraldus Cambrensis as being of a massive oak  treetrunk. For Bronze Age Britain, examples have been recorded at Wydon Eals, near Haltwhistle, and at Cartington, Co. Durham, in Scotland, Yorkshire, East Anglia (Liss, northeast Hampshire, for instance). In Yorkshire, "Gristhorpe Man", a well-preserved human of the second millennium BCE, who was found 10 July 1834 under an ancient burial mound buried in a hollow oak tree trunk, is conserved at the Rotunda Museum, Scarborough: he was wrapped in an animal skin with a whalebone and bronze dagger and food for his journey. At the abbey of Munsterbilzen, Belgium, ten graves with massive treetrunk coffins were discovered in  2006. Because hollowed trunks suggest dugout boats, such burials are sometimes described as boat burials. In Yanjinggou Developing Zone of Chengdu such a "boat burial" in a hollowed-out treetrunk found in 2006 was dated to the Warring States Era (475–221 BCE); it contained copper objects, bronze weapons, pottery and lacquer wares, seeds and peach pits. Its burial was the most recent of eight burials in coffins hollowed out of single tree trunks one and a half meters in diameter, five meters in length, with tapered ends bow and stern. The phenomenon was not restricted to regions where massive timber  was abundant. In Egypt, the conservation of a 1st-century cypresswood coffin hollowed from a single log, from a burial at Touna El Gebel, has been described.