Thericium crenatum (Brocchi, 1814)

Thericium crenatum View in CoL group

This group of species is characterized by its relatively slender outline and sculpture of band-like primary and secondary spiral cords with relatively small and close-set tubercles on late teleoconch whorls. The aperture is relatively narrow, oblique with a crenulated outer lip. Species of this group generally lack the mid-whorl angulation of the Thericium vulgatum group and lack prominent, pointed tubercles along the mid-whorl spiral cord. The last representative of this group is the eponymous Thericium crenatum ( Brocchi, 1814) from the Pliocene of the Mediterranean Sea. No closely related species exists in the modern fauna of the Mediterranean Sea. The crenatum -group is represented in the Paratethys Sea by eight species. The genus did not pass the Badenian/Sarmatian Extinction Event ( Harzhauser & Piller 2007) but survived into the Pliocene in the Mediterranean Sea.