Weald Clay
Description
Source: Wikipédia
La formation de Weald Clay est une unité sédimentaire du Crétacé inférieur affleurant dans le sud-est de l’Angleterre, entre les North Downs et les South Downs, au sein du bassin du Weald (en). Elle représente l’unité sommitale du Groupe de Wealden dans ce bassin, et sa partie supérieure est équivalente en âge à la portion affleurante de la formation de Wessex (en) sur l’île de Wight. La formation est dominée par des mudstones (argilites) finement lités. À l’état non altéré, la roche est bleu/gris ; altérée en surface, elle devient jaune/orange et a été largement utilisée pour la briqueterie.
La Weald Clay s’est déposée dans des environnements lagunaires, lacustres et alluviaux, oscillant du dulçaquicole au saumâtre. Le climat au moment du dépôt était vraisemblablement semi-aride et sujet aux incendies. La formation alterne localement avec des lits subordonnés de ferrolithe rouge, de calcaires coquilliers (notamment le « Sussex Marble ») et des grès, dont le grès calcaire connu sous le nom de Horsham Stone.
Le contact avec la formation sous-jacente de Tunbridge Wells Sand est progressif et conforme, tandis que le contact avec la formation sus-jacente d’Atherfield Clay est net et discordant ; cette dernière correspond à un épisode marin peu profond postérieur à une transgression durant l’Aptien.
Découvertes
Source: The Paleobiology Database
Site(s) correspondant(s) à cette formation: 22
Keymer Tile Works : England - ? 5772 78161 TQ 324191- Smokejacks Brickworks : England - Surrey 11766 11816 11817 15587 55264 63729 78161 78875 Smokejack's Brickworks (Ockley Building Products Limited, formerly Ockley Brick Company Limited), Wallis Wood, Ockley, near Dorking, Surrey, England, a little below the top of the SE face, nearest to the works buildings. Grid reference TQ13: 113 373. Includes extended excavation of Iguanodon in same bed.
- Baryonyx walkeri
- Iguanodon
- Titanosauria identifié comme cf. Titanosaurus sp.
- Iguanodon bernissartensis
- Mantellisaurus atherfieldensis identifié comme Iguanodon atherfieldensis
- Ewhurst Brickworks : England - Surrey 11766 former Ewhurst Brickworks, Surrey; National Grid Reference TQ 108379
- Bolney (BMNH) : England - Sussex 14061 14071 14142 14558 16226 17381 17480 26779 29299 30971 63762 68171 85721 Bolney, Sussex
- Hylaeosaurus armatus
- Ankylosauria identifié comme Polacanthoides sp. n. gen.
- Iguanodon
- Battle, Hastings (Weald Clay) : England - Sussex 14133 14142 63768 near Battle, Sussex
- Bulverhythe, Hastings (BMNH) : England - Sussex 14142 Bulverhythe, near Hastings, East Sussex
- Shornden Quarry (BMNH) : England - Sussex 14142 78161 85567 Shornden Quarry, near Hastings; TQ 803105/TQ 802105
- Silverhill, Hastings (BMNH) : England - Sussex 10595 14142 31500 31505 Silverhill, near Hastings, East Sussex
- Hastings beach (BMNH) : England - East Sussex 14160 beach near Hastings, East Sussex
- Barilium dawsoni identifié comme Iguanodon cf. dawsoni
- Henfield (BMNH) : England - Sussex 14311 64006 Henfield, West Sussex
- Avialae identifié comme Wyleyia valdensis n. gen. n. sp.
- Clockhouse Brickworks, E face (top) : England - ? 17080 78161 E face of quarry, near top of exposure; Grid Ref TQ 175385/TQ177387
- Swanage Bay tracksite : England - Dorset 24490 30971 Swanage Bay, about 200 yds from the W end of the Wealden cliff
- Heathfield, Sussex (BMNH) : England - Sussex 25599 43605 Healthfield, Sussex
- Valdosaurus canaliculatus identifié comme ? Dryosaurus canaliculatus
- Pines Hotel, Swanage : England - Dorset 27069 about 50 ft E of the Pines Hotel, Swanage, in sute at low beach level
- Bincombe railway cutting : England - Dorset 27069 30971 Bincombe railway cutting, a few miles SSW of Dorchester
- Iguanodon identifié comme Iguanodon mantelli
- foreshore, Bexhill-on-Sea : England - Sussex 27782 47230 exposed on foreshore, near Bexhill-on-Sea
- Harting Combe, Haslemere : England - West Sussex 27782 78041 Harting Combe, near Haslemere, Surry area
- Keymer Tile Works : England - West Sussex 38390 TQ 323 193, Keymer Tile Works, Burgess Hill, West Sussex
- Langhurstwood Quarry (SE face), Warnham : England - West Sussex 78161 78875 SE face of Langhurstwood Quarry, Langhurstwood Road, Warnham; TQ 180352 (also listed as TQ 182352)
- Langhurstwood Quarry (NW face), Warnham : England - West Sussex 78875 NW side of Langhurstwood Quarry, Langhurstwood Road, Warnham; TQ 181353
- Smokejacks Brickworks, SW face : England - Surrey 78875 78876 Smokejack's Brickworks (Ockley Building Products Limited, formerly Ockley Brick Company Limited), Wallis Wood, Ockley, near Dorking, Surrey, England, in a gulley at top of the SW face.
- 1 km northeast of Slinfold : England - Sussex 78875 78877 close to intermittently worked quarry, 1 km NE of Slinford (TQ 127318)
Publication(s)
La base comprend 42 publication(s).
Source: The Paleobiology Database
- ↑1 2 E. Cook. 1995. Taphonomy of two non-marine Lower Cretaceous bone accumulations from southeastern England. Palaeogeography, Palaeoclimatology, Palaeoecology 116(3-4):263-270 (https://doi.org/10.1016/0031-0182(94)00101-d)
- ↑1 2 3 4 5 6 D. J. Batten and P. A. Austen. 2011. The Wealden of south-east England. English Wealden Fossils. The Palaeontological Association Field Guide to Fossils 14:15-51
- ↑1 2 W. H. E. Rivett. 1956. On some reptilian bones from the Weald Clay of Surrey. Proceedings of the Geologists' Association 67(1540):110-111
- ↑1 2 3 A. J. Charig and A. C. Milner. 1997. Baryonyx walkeri, a fish-eating dinosaur from the Wealden of Surrey. Bulletin of the Natural History Museum, Geology Series 53(1):11-70
- ↑1 A. J. Charig and A. C. Milner. 1990. The systematic position of Baryonyx walkeri, in the light of Gauthier's reclassification of the Theropoda. Dinosaur Systematics: Perspectives and Approaches (https://doi.org/10.1017/cbo9780511608377.012)
- ↑1 A. J. Charig and A. C. Milner. 1986. Baryonyx, a remarkable new theropod dinosaur. Nature 324(6095):359-361 (https://doi.org/10.1038/324359a0)
- ↑1 M. J. Benton and P. S. Spencer. 1995. Fossil Reptiles of Great Britain. Chapman & Hall, London (https://doi.org/10.1097/00006842-199501000-00008)
- ↑1 Anonymous. 1983. The beast that roamed Surrey 124 million years ago. New Scientist 99(1368):268
- ↑1 2 3 4 5 6 J. D. Radley and P. Allen. 2012. The Wealden (non-marine Lower Cretaceous) of the Weald Sub-basin, southern England. Proceedings of the Geologists' Association 123(2):245-318 (https://doi.org/10.1016/j.pgeola.2012.01.003)
- ↑1 2 G. A. Mantell. 1851. Petrifactions and Their Teachings; or, a Hand-Book to the Gallery of Organic Remains of the British Museum (https://doi.org/10.5962/bhl.title.19821)
- ↑1 R. Owen. 1858. Monograph on the fossil Reptilia of the Wealden and Purbeck Formations. Part IV. Dinosauria (Hylaeosaurus). [Wealden]. The Palaeontological Society, London 1856:8-26 (https://doi.org/10.1080/02693445.1858.12027916)
- ↑1 R. Owen. 1842. Report on British fossil reptiles, part II. Report of the British Association for the Advancement of Science 11:60-204
- ↑1 2 3 4 5 6 7 8 R. Lydekker. 1888. Catalogue of the Fossil Reptilia and Amphibia in the British Museum (Natural History). Part I. Containing the Orders Ornithosauria, Crocodilia, Dinosauria, Squamata, Rhynchocephalia, and Proterosauria. British Museum (Natural History), London (https://doi.org/10.1017/s0016756800173480)
- ↑1 J. Pereda-Suberbiola. 1993. Hylaeosaurus, Polacanthus, and the systematics and stratigraphy of Wealden armoured dinosaurs. Geological Magazine 130(6):767-781 (https://doi.org/10.1017/s0016756800023141)
- ↑1 R. Owen. 1859. Palaeontology. The Encyclopaedia Brittanica, or Dictionary of Arts, Sciences, and General Literature (8th Edition) 17:91-176
- ↑1 W. P. Coombs. 1978. The families of the ornithischian dinosaur order Ankylosauria. Palaeontology 21(1):143-170
- ↑1 B. F. Nopcsa. 1928. Palaeontological notes on reptiles. V. On the skull of the Upper Cretaceous dinosaur Euoplocephalus. Geologica Hungarica, Series Palaeontologica 1(1):1-54
- ↑1 F. -J. Pictet. 1853. Traité de Paléontologie ou Histoire Naturelle des Animaux Fossiles Considérés dans Leurs Rapports Zoologiques et Géologiques [Treatise of Paleontology or the Natural History of Fossil Animals Considered in their Zoological and Geological Relationships] 1:xiv-584 (https://doi.org/10.5962/bhl.title.13903)
- ↑1 2 3 A. S. Woodward and C. D. Sherborn. 1890. A Catalogue of British Fossil Vertebrata. Dulao & Company, London (https://doi.org/10.1093/nq/s7-ix.210.13d)
- ↑1 G. A. Mantell. 1854. The Medals of Creation; or, First Lessions in Geology, and the Study of Organic Remains 2:447-930 (https://doi.org/10.5962/bhl.title.13910)
- ↑1 E. Van Den Broeck. 1900. Les dépôts à Iguanodons de Bernissart et leur transfert dans l’étage Purbeckien ou Aquilonien du Jurassique supérieur. Exposé comprenant une revue de la faune des vertébrés du Purbeckien et du Wealdien dans le sud-est de l’Angleterre [The Iguanodon deposits of Bernissart and their transfer to the Purbeckian or Aquilonian stage of the Upper Jurassic. Presentation including a review of the vertebrate fauna of the Purbeckian and Wealden of southeast England ]. Mémoires de la Société Belge de Géologie de Paléontologie et d’Hydrologie 14:39-112
- ↑1 R. Owen. 1860. Palaeontology or a Systematic Summary of Extinct Animals and Their Geological Relations (https://doi.org/10.1144/gsl.jgs.1860.016.01-02.07)
- ↑1 2 G. A. Mantell. 1850. A Pictorial Atlas of Fossil Remains. (https://doi.org/10.5962/bhl.title.122592)
- ↑1 R. Owen. 1855. Monograph on the fossil Reptilia of the Wealden and Purbeck Formations. Part II. Dinosauria (Iguanodon). [Wealden]. The Palaeontographical Society, London 1854:1-54
- ↑1 K. Brooks. 2011. Dinosaur quarries of Hastings. Hastings & District Geological Society Journal 17:7-13
- ↑1 R. E. Molnar and P. M. Galton. 1986. Hypsilophodontid dinosaurs from Lightning Ridge, New South Wales, Australia. Géobios 19(2):231-239 (https://doi.org/10.1016/s0016-6995(86)80046-8)
- ↑1 P. M. Galton. 2009. Notes on Neocomian (Lower Cretaceous) ornithopod dinosaurs from England - Hypsilophodon, Valdosaurus, "Camptosaurus", "Iguanodon" - and referred specimens from Romania and elsewhere. Revue de Paléobiologie, Genève 28(1):211-273
- ↑1 P. M. Barrett. 1996. The first known femur of Hylaeosaurus armatus and re-identification of ornithopod material in The Natural History Museum, London. Bulletin of the Natural History Museum, London (Geology) 52(2):115–118
- ↑1 2 R. Lydekker. 1890. Contributions to our knowledge of the dinosaurs of the Wealden and the sauropterygians of the Purbeck and Oxford Clay. Quarterly Journal of the Geological Society of London 46:36-53
- ↑1 2 C. J. O. Harrison and C. A. Walker. 1973. Wyleyia: a new bird humerus from the Lower Cretaceous of England. Palaeontology 16(4):721-728
- ↑1 P. Brodkorb. 1978. Catalogue of fossil birds. Part 5 (Passeriformes). Bulletin of the Florida State Museum 23(3):139-228 (https://doi.org/10.58782/flmnh.nrxd8174)
- ↑1 2 R. Agar. 2005. Clockhouse Brickworks 2001-2003. Wealden News 6:4-5
- ↑1 2 S. H. Beckles. 1862. On some natural casts of reptilian footprints in the Wealden beds of the Isle of Wight and of Swanage. Quarterly Journal of the Geological Society of London 18:443-447 (https://doi.org/10.1144/gsl.jgs.1862.018.01-02.60)
- ↑1 2 P. M. Galton. 1975. English hypsilophodontid dinosaurs (Reptilia: Ornithischia). Palaeontology 18(4):741-752
- ↑1 D. Naish and D. M. Martill. 2008. Dinosaurs of Great Britain and the role of the Geological Society of London in their discovery: Ornithischia. Journal of the Geological Society, London 165:613-623 (https://doi.org/10.1144/0016-76492007-154)
- ↑1 2 3 4 J. B. Delair. 1966. New records of dinosaurs and other fossil reptiles from Dorset. Proceedings of the Dorset Natural History and Archaeological Society 87:57-66
- ↑1 2 3 4 J. B. Delair and W. A. S. Sarjeant. 1985. History and bibliography of the study of fossil vertebrate footprints in the British Isles: supplement 1973–1983. Palaeogeography, Palaeoclimatology, Palaeoecology 49:123-160 (https://doi.org/10.1016/0031-0182(85)90007-0)
- ↑1 J. B. Delair. 1989. A history of dinosaur footprints discoveries in the British Wealden. Dinosaur Tracks and Traces
- ↑1 C. Diedrich. 2004. New important iguanodontid and theropod trackways of the tracksite Obernkirchen in the Berriasian of NW Germany and megatracksite concept of central Europe. Ichnos 11(3-4):215-228 (https://doi.org/10.1080/10420940490444924)
- ↑1 2 E. Cook and A. J. Ross. 1996. The stratigraphy, sedimentology and palaeontology of the Lower Weald Clay (Hauterivian) at Keymer Tileworks, West Sussex, southern England. Proceedings of the Geologists' Association 107:231-239 (https://doi.org/10.1016/s0016-7878(96)80031-9)
- ↑1 2 E. A. Jarzembowski, P. Austen, and G. Toye. 2009. Wealden fieldtrip to Langhurstwood and Smokejacks—18th July 2009. The GA Magazine 8(4):18
- ↑1 2 R. Birch. 2007. Horsham stone rediscovered. Earth Heritage 27:16
Galerie d'image
Pas d'image.