Research on dolmens of the Korean peninsula began with Torii Ryuzo. Later, Fujita Ryosaku also left his mark on dolmen research. It is difficult to decide whether the classification made by Torii and Fujita into table-shaped and goboard-shaped types is one derived simply from outward appearance or based on differences in structure. Nevertheless, many scholars have taken it to be a classification based on structure, and have continually repeated arguments about "which is older?" under the assumptions of a single origin and unilineal development.<BR>On the other hand, Arimitsu Kyoichi, Seki Koshun, Komoto Masayuki, and others have recognized a third type called the Simchon dolmen, and assuming a single source with multiple lines of development have asked the question "which of these is oldest?", while arguing that table-shaped type began to be produced due to branching off at some point from other forms. Posing such questions as "which is oldest?" and "what were the techniques of manufacture and the ways these items were made?" is proper in terms of archaeological methodology. But Seki did not take up the dolmens from the southern part of the Korean peninsula in his analysis, and the argument for linking Komoto' s Simchon type with southern style dolmens is not convincing given the data as presently known.<BR>Southern style dolmens utilize natural stones of moderate size to receive the capstones, and under the label of "support-stone burials" in this contribution, these are classed into "multiple support-stones of indeterminate number" and "support-stones of fixed number" types based on the way of receiving the capstones, corresponding to the traditional "unsupported capstone" versus "supported capstone" dichotomy. As part of a revaluation of dolmen research, continuing from previous work on table-shaped dolmens, from the perspective of this new classification the techniques of manufacture of these types and the questions of "which is oldest, which developed as the newest?" are herein addressed.<BR>As to "which is oldest?", when graves derived from the cairn-marked burial tradition of the Liaotung region of China diffused into the Korean peninsula, it is thought that their rectangular shaeped burial stone chamber built near the ground surface were covered with large boulders or slabs of rock. This is because Liaotung-style bronze swords have been found in large numbers in the peninsula. The Chonjeon-ri A and B cairn-marked burials in the district of Chunchon, Kangwondo, are probably examples of such burials being transmitted into the peninsula. The oldest type of support-stone burial is thought to be that in which the capstones are received by an indeterminate number of multiple support stones.<BR>It is believed that at the time there were several regional cultures, whose exact number is uncertain, within the Korean peninsula, and it is possible that differences in support-stone burials correspond with these cultures. The Simchon type dolmen was a support-stone burial built in the western region, and accordingly it may be advisable to look for developmental change within that region. Support-stone burials were already being built by the seventh century B.C. within the peninsula, and by the time that narrow-bladed bronze swords assumed a regular shape in the fifth century B.C., burials with shapes that were different while maintaining some similarities had developed, and it is thought that the Korean peninsula was moving toward a new age.