Nordic megalith architecture is an ancient architectural style found in Northern Europe, especially Scandinavia and North Germany, that involves large slabs of stone arranged to form a structure. It emerged in northern Europe, predominantly between 3500 and 2800 BC. It was primarily a product of the Funnelbeaker culture. Amongst its researchers, Ewald Schuldt in Mecklenburg-Western Pomerania excavated over 100 sites of different types - simple dolmens, extended dolmens – also called rectangular dolmens – passage graves, great dolmens, unchambered long barrows and stone cists - between 1964 and 1974. In addition, there are polygonal dolmens and types that emerged later, for example, the Grabkiste and Röse. This nomenclature, which specifically derives from the German, is not used in Scandinavia where these sites are categorised by other, more general, terms, as dolmens (Dysser, Döser), passage graves (Ganggrifter, Jættestuen) and stone cists (Hellekister, Hällkista). Neolithic monuments are a feature of the culture and ideology of Neolithic communities. Their appearance and function serves as an indicator of their social development.
Schuldt divided the architectural elements into:
There is a considerable difference in chamber design between sites where the capstones are exclusively supported at three points and those where one or more capstones are supported at two points (forming a trilithon). The glacial erratics selected for the walls and roofs, in addition to being the right size, had at least one relatively flat side. Sometimes these were made by splitting a stone, probably by means of heating and quenching. At the narrow end of great dolmens, slabs made of red sandstone were also used, instead of erratics, for walls and infill sections, usually filling in gaps between the supporting stones or orthostats.