Miocene deposits in Belgium include those of the Bolderberg Formation (Upper Aquitanian-Burdigalian) and Berchem Formation (Sands of Antwerp, Sands of Edegem; Aquitanian-Burdigalian). Glibert (1952) discussed the gastropods from the Miocene of Belgium.
Hemmoorian (Langhian) materials, as documented by Kautsky (1925), is comparable to the matrials found at Miste, The Netherlands (see below).
In Miste, near Winterswijk, Gelderland, The Netherlands, rich Hemmoorian (Langhian) deposits were sampled in 1971 (locality here entered as Miste 1), at a locality only a short distance from the first one in 2003 (locality here entered as Miste 2), and in 2013. Extensiove stratigraphic data can be found in Van den Bosch, Cadée & Janssen (1975). Janssen (1984) reported on the materials found during the early excavation.