| Stadthagen Formation | |
| Type: | Geological formation |
| Age: | Valanginian, ~ |
| Period: | Valanginian |
| Region: | Hanover, Germany |
| Coordinates: | 52.3972°N 9.2683°W |
| Unitof: | Lower Saxony Basin |
| Subunits: |
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| Overlies: | Bückeberg Formation and Isterberg Formation |
| Extent: | Engelbostel and Sachsenhagen clay pits |
The Stadthagen Formation is a geological formation located in Hanover, Germany, dating to the Early Cretaceous (Valanginian).[1] The formation contains fossils of reptiles and fish, suggesting that the formation was once a shallow marine setting.[2]
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.
| Actinopterygii[3] | Indeterminate | Sachsenhagen | |||||
| Crocodylomorpha[4] | Indeterminate | Sachsenhagen | Known from remains currently located within private collections. | ||||
| Enalioetes | E. schroederi | Engelbostel | Much of the skull as well as parts of the neck. | Previously known as Enaliosuchus "schroederi" and Cricosaurus "schroederi". | |||
| Enaliosuchus[5] | E. macrospondylus | An 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. | ||||
| Gyrodus[6] | G. sp. | Engelbostel | Nearly complete specimen. | ||||
| Plesiosauria | Indeterminate | Sachsenhagen | |||||
| Targaryendraco | T. wiedenrothi | Engelbostel and Sachsenhagen | Platylenticeras robustum and P. heteropleurum ammonite zones | Partial skeleton with lower jaws. | Previously known as Ornithocheirus wiedenrothi. |