Argiles d'Octeville explained

Argiles d'Octeville
Type:Geological formation
Period:Kimmeridgian
Prilithology:Claystone
Otherlithology:Limestone
Namedfor:Octeville-sur-Mer
Region:Normandy
Country: France
Subunits: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

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

Vertebrate fauna

Reptiles of the Argiles d'Octeville
TaxaSpeciesPresenceMaterialNotesImages
DacentrurusIndeterminate[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. wellnhoferiCliffs of Octeville, Cap de La Hève, NormandyLeft anterior portion of the skull and associated lower jawsPterosaur, indeterminate Monofenestratan.
SauropodaIndeterminate
  1. Geographically located in Departement de la Seine-Maritime, France.
  1. "(=Pelorosaurus sp.)"

See also

Notes and References

  1. Weishampel, David B; et al. (2004). "Dinosaur distribution (Late Jurassic, Europe)." In: Weishampel, David B.; Dodson, Peter; and Osmólska, Halszka (eds.): The Dinosauria, 2nd, Berkeley: University of California Press. Pp. 545–549. .
  2. Gallois, R. W. 2005 Kimmeridgian of the Normandy coast, C. R. L'Acad. Sci., Vol. 337, 347-255.
  3. M. Saint-Germès, F. Baudin, J.-F. Deconinck, P. Hantzpergue, Y. Samson. 1996. Sédimentologie de la matière organique et des argiles du Kimméridgien de Normandie (région du Havre) (Sedimentology of organic matter and day mineralogy in the Kimmeridgian of Normandy (Le Havre area))
  4. Maidment. Susannah C. R.. Norman. David B.. Barrett. Paul M.. Upchurch. Paul. January 2008. Systematics and phylogeny of Stegosauria (Dinosauria: Ornithischia). Journal of Systematic Palaeontology. en. 6. 4. 367–407. 10.1017/S1477201908002459. 1477-2019.
  5. Lepage Y., Buffetaut E. & Lepage G., 2018. The first photographs of a dinosaur excavation in Europe: Emile Savalle and the stegosaur from Octeville (Normandy, 1898). Colligo, 1(1). https://perma-archives.org/warc/20180728200744/http://www.revue-colligo.fr/index.php?id=11
  6. Nopcsa F., 1911. Omosaurus lennieri. Un nouveau dinosaurien au Cap de la Hève. Bulletin de la Société géologique de Normandie, 30 (1910) : 23-42.
  7. Buffetaut, E., Lepage, J.-J., and Lepage, G. (1998). A new pterodactyloid pterosaur from the Kimmeridgian of the Cap de la Hève (Normandy, France). Geological Magazine 135(5):719–722.