The Stadthagen Formation is a geological formation located in Hanover, Germany, dating to the Early Cretaceous (Valanginian). The formation contains fossils of reptiles and fish, suggesting that the formation was once a shallow marine setting.Pêgas, R.V., Holgado, B., Leal, M.E.C., (2019). "Targaryendraco wiedenrothi gen. nov. (Pterodactyloidea, Pteranodontoidea, Lanceodontia) and recognition of a new cosmopolitan lineage of Cretaceous toothed pterodactyloids", Historical Biology, 1–15. doi:10.1080/08912963.2019.1690482
History The Stadthagen Formation outcrops in the Engelbostel and Sachsenhagen clay pits, which operated as brickworks from 1904 to 1986. After the brickworks closed in 1986, most of the quarry area was backfilled and used as a waste dump before being abandoned.
Paleobiota of the Stadthagen Formation +GenusSpeciesLocationStratigraphic positionMaterialNotesImageActinopterygiiFrerichs, U. (2017a). Fische. Arbeitskreis Paläontologie Hannover 45: 59–62.IndeterminateSachsenhagenCrocodylomorphaFrerichs, U. (2017b). Reptilien. Arbeitskreis Paläontologie Hannover 45: 63–68.IndeterminateSachsenhagenKnown from remains currently located within private collections.EnalioetesE. schroederiEngelbostelMuch of the skull as well as parts of the neck.Previously known as Enaliosuchus "schroederi" and Cricosaurus "schroederi".EnaliosuchusKoken E. (1883). Die reptilian der norddeutschen unteren Kreide. Zeitschrift deutschen Geologischen Gesellschaft 35: 735-827.E. macrospondylusAn atlas-axis complex, three post-axial cervical vertebrae, several dorsal vertebrae, a caudal vertebra, an incomplete femur and a fragmentary sacral rib.Its remains have also been recovered from the Campylotoxus Zone of France.GyrodusHornung, Jahn & Hannover, Landesmuseum & Brandt-Allee, Willy. (2021). Pycnodont fishes (Actinopterygii: Pycnodontiformes) from the Lower Cretaceous of northern Germany - diversity and palecological relationships. 58. 4-77. G. sp.EngelbostelNearly complete specimen.PlesiosauriaIndeterminateSachsenhagenTargaryendracoT. wiedenrothiEngelbostel and SachsenhagenPlatylenticeras robustum and P. heteropleurum ammonite zonesPartial skeleton with lower jaws.Previously known as Ornithocheirus wiedenrothi.
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