The Genus Strioterebrum Sacco, 1891 in the Hemmoorian and Reinbekian (Middle Miocene) of the North Sea Basin

In the Middle Miocene Hemmoorian and Reinbekian strata of the North Sea Basin five species belonging to the genus Strioterebrum Sacco, 1861 are found. Three of these species are new to science, and described as Strioterebrum ariei sp. nov., Strioterebrum fabritzi sp. nov., and Strioterebrum ronaldi sp. nov. There is a clear turnover within the Strioterebrum fauna in the lowermost Reinbekian as three species occurring in the North Sea Basin since the Vierlandian respectively earliest Hemmoorian times nearly simultaneously disappear to be replaced by two other species. Parallels to the development of the genus Nassarius Dumeril, 1806, are drawn. For this reason and the abundance of most of the species, the genus Strioterebrum is a useful tool in the Miocene North Sea Basin biostratigraphy.