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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.
Travelling from Antwerp the hills and valleys in and around Brussels are obvious. Where the hills have a high grade of decalcification, which results in fi the Brussels Sands laying at the near surface with minimal macro fossils, valleys like the Woluwe region, named after the river, yield more macro fossils as the fossils sands are better protected from the rains, the elements, but the layers sit deeper.
From the Middle Ages, farmers around Steenokkerzeel and the Brabant Kouters dug small, temporary pits in their fields after the harvest to quarry Diegem sandstone. A stone dating back to the Eocene age 45-48 Ma with marine fossils from an era the region sat beneath a shallow tropical sea. On the Ferraris map from 1777, a small brown "C" shape marks the location of these temporary stone pits (carrières).
Brussels Sands/Lede formation, species list
Pisces
Chondrichthyans
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)
Ginglymostoma thielensi (Winkler, 1873)´[syn. Nebrius thielensi]
Foumtizia pattersoni (Cappetta, 1976)
Jaekelotodus trigonalis (Jaekel, 1895)
The Eocene around Brussels holds very nicely coloured teeth(Brussels formation), ...
some different colourations
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
Tilly bones?
Invertebrates
Mollusca
Bivalvia
Pectinidae
Teredina
Gastropoda
Cephalopoda
Sepiida
Brachiopoda
Terebratula
Bryozoa
Unidentified branch
Unidentified2
Cnidaria
Scleractinia unidentified
Echinodermata
Spines
Fragments
Vermes
Wormcasts
Arthropoda
Pincer
Pincer2
Pincer3
Marine plankton
Plantae
Chaumont Gistoux
Sepiida
Sandstone with molluscs, Brussel Sands
Construction site at Wemmel, looking for the Wemmel Sands, could be Pleistocene Loess untop of Lede formation and Wemmel sands
Never ending works in and around Brussels, but minimal fossils, good way to see the layering.
Brussel Sands
The Woluwe river, overgrown
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, Pectinidae, Ostrea, seaurchin parts, Nummulites, Teredina f.e. are usually found however.
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