Stadthagen Formation
| Stadthagen Formation | |
|---|---|
| Stratigraphic range: Valanginian, ~ | |
| Type | Geological formation |
| Unit of | Lower Saxony Basin |
| Sub-units |
|
| Overlies | Bückeberg Formation and Isterberg Formation |
| Location | |
| Coordinates | 52°23′50″N 9°16′06″E / 52.3972°N 9.2683°E |
| Region | Hanover, Germany |
| Country |  Germany |
| 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]
History
[edit]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.[2]
Paleobiota of the Stadthagen Formation
[edit]| Genus | Species | Location | Stratigraphic position | Material | Notes | Image |
|---|---|---|---|---|---|---|
| Actinopterygii[3] | Indeterminate | Sachsenhagen | ||||
| Crocodylomorpha[4] | Indeterminate | Sachsenhagen | Known from remains currently located within private collections. | |||
| Enalioetes[1] | 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[4] | Indeterminate[4] | Sachsenhagen | ||||
| Targaryendraco[2] | T. wiedenrothi | Engelbostel and Sachsenhagen | Platylenticeras robustum and P. heteropleurum ammonite zones | Partial skeleton with lower jaws. | Previously known as Ornithocheirus wiedenrothi. | 
|
References
[edit]- ^ a b Sachs, S.; Young, M.T.; Hornung, J.J.; Cowgill, T.; Schwab, J.A.; Brusatte, S.L. (2024). "A new genus of metriorhynchid crocodylomorph from the Lower Cretaceous of Germany". Journal of Systematic Palaeontology. 22 (1). doi:10.1080/14772019.2024.2359946.
- ^ a b c 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
- ^ Frerichs, U. (2017a). Fische. Arbeitskreis Paläontologie Hannover 45: 59–62.
- ^ a b c Frerichs, U. (2017b). Reptilien. Arbeitskreis Paläontologie Hannover 45: 63–68.
- ^ Koken E. (1883). Die reptilian der norddeutschen unteren Kreide. Zeitschrift deutschen Geologischen Gesellschaft 35: 735-827.
- ^ Hornung, 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.