| Argiles d'Octeville | |
|---|---|
| Stratigraphic range: | |
|   Argiles d'Octeville exposed near the base of cliffs near Octeville-sur-Mer, with Chalk in the upper exposure | |
| Type | Geological formation | 
| Sub-units | Argiles du Croquet inférieures, Argiles du Croquet supérieures, Argiles d'Ecqueville inférieures, Argiles d'Ecqueville médianes, Argiles d'Ecqueville supérieures | 
| Underlies | Unconformity with Aptian sands | 
| Overlies | Marnes de Bleville | 
| Thickness | 34 metres | 
| Lithology | |
| Primary | Claystone | 
| Other | Limestone | 
| Location | |
| Region | Normandy | 
| Country | France | 
| Type section | |
| Named for | Octeville-sur-Mer | 
The Argiles d'Octeville (meaning Octeville Clay) is a geological formation in Normandy, France. It dates back to the Kimmeridgian stage of the Late Jurassic. [1] It is equivalent to the Kimmeridge Clay in England [2] and predominantly consists of claystone, with some limestone. [3] It is well exposed in cliff section at Cap de la Hève
 
 | Reptiles of the Argiles d'Octeville | ||||||
|---|---|---|---|---|---|---|
| Taxa | Species | Presence | Material | Notes | Images | |
| Indeterminate [4] | Cliffs of Octeville, Cap de La Hève, Normandy | "Seven cervical vertebrae, seven dorsal vertebrae, a sacrum with seven fused centra and sacral ribs, the left ilium, the posterior ends of one pubis and one ischium, the first caudal vertebra and one femur" | Dacentrurine Stegosaur. Excavated in 1898. [5] First described as "Omosaurus lennieri" by Nopcsa in 1911 [6] Remains destroyed by WW2 bombing in 1944. |   | ||
| Normannognathus [7] | N. wellnhoferi | Cliffs of Octeville, Cap de La Hève, Normandy | Left anterior portion of the skull and associated lower jaws | Pterosaur, indeterminate Monofenestratan. | ||
| Indeterminate | 
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