From the slightly older Nusplingen Plattenkalk (late Kimmeridgian) of southern Germany, both G. suevicus and Dakosaurus maximus are contemporaneous.
Several species of metriorhynchids are known from the Mörnsheim Formation (Solnhofen limestone, early Tithonian) of Bavaria, Germany: Dakosaurus maximus, Geosaurus giganteus, Cricosaurus suevicus and Rhacheosaurus gracilis.
This specimen had been provisionally referred to an unnamed species of Late Jurassic Metriorhynchus or Geosaurus.