“Sternberger Kuchen” (“Sternberg cake”), a large late Pleistocene glaciofluvial pebble of a highly fossiliferous, shallow marine sandstone of the North German Paleogene (Sülstorf beds, formerly known as “Sternberg rock”, Chattian, Oligocene, about 25 million years old). The fossil content is mainly made up of mollusks (pelecypods, gastropods, scaphopods). Provenance: Sternberg, Mecklenburg-Vorpommern, Northeast Germany.