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Origin and history

The Dolmen de la Devèze-sud, in Marcilhac-sur-Célé (Lot), is a megalithic building emblematic of Neolithic, erected near a cliff overlooking the Célé valley. It consists of a tumulus of 16 meters in diameter and a sepulchral chamber facing southeast, aligned with sunrise at the winter solstice. Its architecture, typical of the Lotois dolmens, combines local limestone slabs and partially preserved rectangular walls. The site, searched between 1963 and 1994, revealed a complex use, marked by collective burials and successive redevelopments.

The excavations led by Jean Clottes (1963-1964) and Jean-Pierre Lagasquie (1992-1994) allowed 11 phases of construction and use to be reconstructed, from the clearance of the ground to subsequent violations. The room, looted but partially preserved, housed the remains of at least 16 individuals, accompanied by rich funerary furniture (pearls, bone buttons, arrow tips), dated from the ancient Chalcolithic/Bronze. Three exterior burials, added during the 2nd Iron Age, testify to a re-appropriation of the site well after its initial construction.

The tumulus, of disorderly internal structure but wrapped with a neat trimming, uses local materials: limestone from the valley for the northeast trimming, and blocks extracted on site for the cairn. The outer slabs, stacked "in scales", contrast with the disturbed facade, suggesting posterior alterations. The absence of a rear trim and the disappearance of the cover table (of which fragments remain) raise questions about the original state of the monument.

Archaeological discoveries, such as the 51 prismatic bone buttons — the third French deposit of numerical importance — or the bronze fibules of the iron graves, have refined the chronology of the site. The dolmen, inscribed in the Historical Monuments in 1997, thus illustrates the evolution of funeral practices, from Neolithic to Iron Age, in Quercy.

The astronomical orientation of the chamber (azimut 140°) and its alignment to the winter solstice suggest a strong symbolic dimension, common to many megaliths. The underlying lapiaz, used as a natural pavement, and the use of existing depressions to set orthostats, reveal a careful integration into the landscape. These elements, coupled with funeral furniture, confirm the central role of dolmen in rituals and the collective memory of local prehistoric societies.

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