Located some 10 km at the south-east of Liège the Walou cave entrance faces the north-west, 25 m above the Magne, a tributary of the Vesdre river. Excavations were conducted at the site from 1985 to 1990 and then from 1996 to 2004, revealing numerous successive prehistoric occupations. Its extensive stratigraphic sequence is the best documented for a Belgian Upper Pleistocene karst site. Thanks to a multidisciplinary approach the chronostratigraphic and palaeoenvironmental framework of the occupations is well understood. Out of the 45 layers of the sequence 25 yielded archaeological material. There are traces of the Neolithic (Layer A2) and the Mesolithic (Layers A4 and A5) at the top. The cave also revealed several Upper Palaeolithic occupations: Federmesser (Layer B1), Gravettian (Layer B5) and Aurignacian (Layer CI-1). The lower half of the sequence, which encompasses the Last Interglacial and the Weichselian Early Glacial, includes 9 Mousterian occupations; 6 reworked layers also yielded some artefacts from that culture. A Neandertal tooth was found in Layer CI-8, which contains the richest Mousterian occupation of the site. All lithic material was made from flint probably sourced in secondary position near the cave. Only the Gravettian and Aurignacian occupations yielded other man-made materials: antler spearheads and animal and mineral non-utilitarian artefacts from the Aurignacian. Numerous faunal remains were also found; among them: cave bear, cave hyena, horse, fox, bison/aurochs, woolly rhinoceros, deer, mammoth, chamois, hare, small rodents and a few birds. The study of the fish remains revealed that fishing took place at the site, as much during the Middle Palaeolithic as during the Upper Palaeolithic and Neolithic.
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RBINS Staff Publications
Within the historic center of Brussels, excavations on a surface of almost 6000 m2 revealed the well preserved remains of a medieval port on the Senne river. This watercourse is inextricably linked with the origin and development of the city. Continuous occupancy at this location is documented from the 10th century onwards. The banks of the river were gradually built in the 12th century and in the 14th-15th century the river was canalised and provided with a boat dock. The Senne river played an important role in the local social and economic development of Brussels. A large amount of archaeological artefacts, including numerous animal remains, have been collected by hand and from sediment samples taken from the east bank and the riverbed. Preliminary results show how the Senne river acted as a waste bin for urban rubbish. This poster will mainly focus on the animal materials from the residues of the sieved sediment samples. These yielded many shells of local freshwater molluscs, which are informative for the river conditions. In addition, the protective cases of the larvae of caddisflies (Trichoptera) have been found. Caddisflies are a group of insects with aquatic larvae and terrestrial adults. The larvae of many species use silk to make protective cases, which are often strengthened with gravel, sand, twigs, plant fragments or other debris. While the cases of many of these species are not identifiable up to genus or species level, the presence of Brachycentrus subnubilus Curtis, 1834 has been established with certainty in the late medieval riverbed of the Senne. The importance of this find is discussed.
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RBINS Staff Publications 2023
