Kransia pentagona is a small Rhynchonellid type brachiopod from the Hallert mbr. of the Ahbach Formation (Devonian, Givetian stage) near Blankenheim, Germany. It resembles Uncinulus sp. like brachiopods such as Sphaerirhynchia from the Haragan Formation of Oklahoma and Primipilaria primipilaris from Poland.
Specimen #1 Brachial valve
Specimen #2 Brachial valve
Thanks to Nils for these specimens.