called "northern" or "table-style" because they feature an above-ground burial chamber formed by heavy stone slabs that form a rectangular cist. An oversized capstone is placed over the stone slab burial chamber, giving the appearance of a table-top. These megalithic burials date to the early part of the Mumun pottery period (c. 1500–850 BC) and are distributed, with a few exceptions, north of the Han River. Few northern-style megaliths in North Korea and Manchuria contain grave goods such as Liaoning bronze daggers, prompting some archaeologists to interpret the burials as the graves of chiefs or preeminent individuals. However, whether a result of grave-robbery or intentional mortuary behaviour, most northern megaliths contain no grave goods. Southern style Southern-style megalithic burials are distributed in the southern Korean Peninsula. It is thought that most of them date to the latter part of the Early Mumun or to the Middle Mumun Period. Southern-style megaliths are typically smaller in scale than northern megaliths. The interment area of southern megaliths has an underground burial chamber made of earth or lined with thin stone slabs. A massive capstone is placed over the interment area and is supported by smaller propping stones. Most of the megalithic burials on the Korean Peninsula are of the southern type. As with northern megaliths, southern examples contain few, if any, artifacts. However, a small number of megalithic burials contain fine red-burnished pottery, bronze daggers, polished groundstone daggers, and greenstone ornaments. Southern megalithic burials are often found in groups, spread out in lines that are parallel with the direction of streams. Megalithic cemeteries contain burials that are linked together by low stone platforms made from large river cobbles. Broken red-burnished pottery and charred wood found on these platforms has led archaeologists to hypothesize that these platform were sometimes used for ceremonies and rituals. The capstones of many southern megaliths have 'cup-marks' carvings. A small number of capstones have human and dagger representations. Capstone style These megaliths are distinguished from other types by the presence of a burial shaft, sometimes up to 4 m in depth, which is lined with large cobbles. A large capstone is placed over the burial shaft without propping stones. Capstone-style megaliths are the most monumental type in the Korean Peninsula, and they are primarily distributed near or on the south coast of Korea. It seems that most of these burials date to the latter part of the Middle Mumun