An exceptional ancient mosaic has been uncovered in the French commune of Soissons, once again revealing the remarkable archaeological richness hidden beneath the soil of Aisne.
Archaeologists from the Department of Aisne made the discovery during construction work linked to the installation of a district heating network in the Saint-Crépin district of Soissons.
The excavation revealed a vast Gallo-Roman pavement of extraordinary quality and preservation. Described as a “mixed” pavement, the floor combines two construction techniques typical of the Roman world: one section formed from concrete, and another composed of tesserae — small cubes of stone or coloured glass used to create decorative designs.
Rarely preserved on such a scale, the central mosaic measures 1.56 metres on each side. According to departmental officials, the find represents “a major discovery for our understanding of local heritage.”
At the centre of the composition is an elaborate square panel arranged around a medallion of black-and-white tesserae. The decoration features complex geometric motifs formed from concentric lines and interlocking lozenges. In one corner, archaeologists identified a finely executed dolphin with red fins, a detail that could provide valuable insight into the craftsmanship and techniques employed by the mosaicist.
Researchers believe the mosaic dates to the late 1st century AD and once adorned the floor of a Roman villa, most likely within a reception room spanning nearly 50 square metres.
The discovery also offers fresh evidence for the Romanisation of Soissons. Archaeologists suggest that the modern Saint-Crépin district formed part of an affluent neighbourhood occupied by the local elite between the 1st and 3rd centuries AD.
But officials said the discovery has not delayed the construction work. Instead, it is a demonstration of the effectiveness of preventive archaeology and the close relationship between the Departmental Archaeological Service and site managers so that both excavation and development can proceed simultaneously while protecting the remains.
The mosaic raises a lot of interesting scientific questions in particular about the unusual combination of construction methods and the decorative programme, which is poorly understood.
A full analysis will now begin with the assistance of experts in Roman mosaic. At the same time, the Department will consider the removal of the pavement to ensure its long-term preservation.
Sources : Aisne Departmental Council
