The collection of fossil Cnidaria – namely the corals – is still the most important one in the section; modern representatives are included for comparative purposes. 25,000 out of the total 49,000 specimens/series are catalogued – among those are 390 holotypes, neotypes, and lectotypes as well as 1,300 paratypes. Moreover, there are several thousand uncatalogued specimens from various localities (mainly from the Eifel area). The outstanding collection of Wedekind requires special attention in the future. In addition to the fossil Cnidaria, collections of other fossils are also curated. Among them are the fossil Echinodermata – ca. 2,500 specimens/series of which 2,219 are documented in catalogues – this includes 30 holotypes, neotypes, and lectotypes as well as 60 paratypes. From the collection of Graptolithida, with ca. 2,000 specimens/series, 1,003 are catalogued. This collection has recently been documented in the Senckenberg database SESAM, and includes15 holotypes, neotypes, and lectotypes as well as 48 paratypes. Parts of the Hunsrückschiefer Collection (mainly the echinoderms) fall under the care of the section, as well as stratigraphic and regional collections of the Palaeozoic (excluding Lower and Middle Devonian). The Tentaculitoidea with 50 holotypes, neotypes, and lectotypes include the material of G.K.B. Alberti (Hamburg). Since few years, the collection of stromatolites is also housed in the section; presently containing 74 specimens.
Due to the relocation of the entire department the collections of the section had been closed during 2018, but are now fully re-accessible. Although the moving process (including the handling of the huge collections of the former geolocical/palaeontological institute of Marburg University) requested a lot of time, the state of storage in the new location is now much better.