Middle Eocene, Lutetian, Brussel Sand Formation, 40.4-48.6 Ma, Brussels region is quite complex with many formations, Bolderberg(Miocene),Sint-Huibrechts, Maldegem, Lede, Brussels, Gent, Tielt, Kortrijk.
The Eocene around Brussels holds very nicely coloured teeth(Brussels formation), ...
Pisces
Condrychtians
Elasmobranchii
Striatolamia macrota Agassiz, 1843
Carcharias sp. sensu Cappetta & Nolf (2005)
Brachycarcharias lerichei (Casier, 1946)
Anomotodon novus (Winkler, 1874)
Hypotodus verticalis (Agassiz, 1843)
Jaekelotodus robustus (Leriche, 1921)
Abdounia recticona (Winkler, 1873)
Abdounia minutissima (Winkler, 1873)
Physogaleus secundus (Winkler, 1874)
Unidentified
Eocene(33.9-55.8 Ma) Reworked Antwerp
Carcharocles auriculatus Jordan, 1923
Heterodontus vincenti (Leriche, 1905)
Nebrius thielensi (Winkler, 1873)
Foumtizia pattersoni (Cappetta, 1976)
Jaekelotodus trigonalis (Jaekel, 1895)
Raytooth in Matrix.
Batoidea
Myliobatis Cuvier (ex. A.M.C. Duméril), 1816
Myliobatis dixoni Agassiz, 1843
Burnhamia daviesi (Woodward, 1889)
Teleosts
Cylindracanthus rectus Dixon, 1844
Fishteeth
Vertebrae
Invertebrates
Mollusca
Bivalvia
Pectinidae
Teredina
Gastropoda
Cephalopoda
Sepiida
Bryozoa
Unidentified branch
Cnidaria
Rugosa unidentified
Echinodermata
Spines
Fragments
Vermes
Wormcasts
Arthropoda
Pincer
Marine plankton
Plantae
Chaumont Gistoux
Sepiida
Brabant Walloon, sandy stones with mollusccasts.
Nummulites
Eocene Hoegaarden, trees, uncovered with railworks. Ypresian 55 Ma
Most sands in Brussels, like the above in Woluwe and Haren hold few fossils, sandstone, Pectenidae, Ostrea, seaurchins, Nummulites, Teredina f.e. are usually found however.