Not available from Boettger (1908) and Fischer & Wenz (1912), who treated the taxon as "mutation", which is not ... [details]
Budenheim, Rhineland-Palatinate, Germany; Wiesbaden Formation ('Hydrobienschichten'), late Aquitanian, early Miocene [details]
Budenheim, Rhineland-Palatinate, Germany; Wiesbaden Formation ('Hydrobienschichten'), late Aquitanian, early Miocene [details]