PaleoDB taxon number: 419704

Alternative combinations: Palaeacmaea porrecta, Pygmaeoconus porrecta

Full reference: J. Perner. 1903. Gastéropodes, Tome 1: Patellidae et Bellerophontidae 1-164

Belongs to Pygmaeoconus according to P. J. Wagner 2020

Sister taxa: Pygmaeoconus compressus, Pygmaeoconus conoideus, Pygmaeoconus gnomicus, Pygmaeoconus hampakuensis, Pygmaeoconus krafti, Pygmaeoconus sohsanensis

Type specimen: Its type locality is Osek, which is in a Sarka offshore shale in the Sarka Formation of the Czech Republic