Ashdown
Description
Source: Wikipédia
The Ashdown Formation is a geological unit, which forms part of the Wealden Group and the lowermost and oldest part of the now unofficial Hastings Beds. These geological units make up the core of the Weald in the English counties of East Sussex and Kent.
The other component formations of the Hastings Beds are the overlying Wadhurst Clay Formation and the Tunbridge Wells Sand Formation. The Hastings Beds in turn forms part of the Wealden Supergroup which underlies much of South East England. The sediments of the Weald of East Sussex, including the Ashdown Formation, were deposited during the Early Cretaceous Period, which lasted for approximately 40 million years from 140 to 100 million years ago. The Ashdown Formation is of Late Berriasian to Early Valanginian to age. The formation takes its name from the Ashdown Forest in the High Weald of Sussex.
Découvertes
Source: The Paleobiology Database
Site(s) correspondant(s) à cette formation: 16
Fairlight Cove, Horizon 2 : England - East Sussex 14152 27782 Fairlight Cove, E of Hastings- Fairlight Cove, Horizon 3 : England - East Sussex 14152 27782 Fairlight Cove, E of Hastings
- Ecclesbourne Glen (BMNH) : England - East Sussex 14170 25840 66267 Ecclesbourne Glen, East Sussex, near Hastings - location probable but not certain
- Ridgeway Hill, railway cutting : England - Dorset 27069 31216 31381 Ridgeway Hill, railway cutting near S entrance to (S side of) Ridgeway tunnel, near Weymouth
- Lee Ness, Fairlight Cove (lower) : England - East Sussex 27715 at Lee Ness, Fairllight, Sussex; TQ 870110
- Lee Ness, Fairlight Cove (upper) : England - East Sussex 27715 at Lee Ness, Fairllight, Sussex; TQ 870110
- Goldbury Point : England - East Sussex 27715 82858 at Goldbury Point, near Fairllight, Sussex; TQ 879115
- Bulverhythe foreshore, Hastings : England - Sussex 27782 46921 47230 52457 78041 82858 from the foreshore near Bulverhythe (incl. Galley Hill), a little E of the Bull Inn, close to railway boundary fence, E of Bexhill, near Hastings, East Sussex
- East Cliff, Hastings : England - Sussex 27912 30971 52457 70300 near East Cliff, Hastings
- Crowborough Brick Company : England - East Sussex 32811 55656 78161 82858 "at the foot and on the east side of Crowborough Beacon Hill, in the hamlet of Jarvisbrook", part of the Ashdown Brickworks,Bexhill
- Galley Hill tracksite : England - East Sussex 27782 46921 62192 82858 between the point (Little Galley Hill) and an isolated stack of Ashdown Sand (by a path across the railway line just SW of the Bull Inn, where the cliff ends), along the shore
- west of Ecclesbourne Glen : England - East Sussex 52457 78161 "the cliff a little west of Ecclesbourne Glen", East Sussex, near Hastings
- Lee Ness tracksite : England - East Sussex 52457 82860 at Lee Ness, Fairllight, Sussex - likely corresponds to Beckles's "about four miles east of Hastings"
- Fairlight Cove : England - East Sussex 77222 Fairlight Cove, E of Hastings
- east of Lee Ness Ledge : England - East Sussex 78875 fallen block, just east of Lee Ness Ledge, SW of Fairlight Cove, TQ 86781111
- Cliff End tracksite : England - East Sussex 78875 at Cliff End (TQ 886126)
Publication(s)
La base comprend 24 publication(s).
Source: The Paleobiology Database
- ↑1 2 3 4 5 6 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 2 K. E. Woodhams and J. S. Hines. 1989. Dinosaur footprints from the Lower Cretaceous of East Sussex, England. Dinosaur Tracks and Traces. Cambridge University Press, Cambridge
- ↑1 2 R. Lydekker. 1893. On a sauropodous dinosaurian vertebra from the Wealden of Hastings. Quarterly Journal of the Geological Society of London 49:276-280 (https://doi.org/10.1144/gsl.jgs.1893.049.01-04.44)
- ↑1 M. P. Taylor and D. Naish. 2007. An unusual new neosauropod dinosaur from the Lower Cretaceous Hastings Beds Group of East Sussex, England. Palaeontology 50(6):1547-1564 (https://doi.org/10.1111/j.1475-4983.2007.00728.x)
- ↑1 M. P. Taylor. 2018. Xenoposeidon is the earliest known rebbachisaurid sauropod dinosaur. PeerJ 6:e5212:1-22 (https://doi.org/10.7717/peerj.5212)
- ↑1 2 R. Damon. 1860. Handbook to the Geology of Weymouth and the Island of Portland. With Notes on the Natural History of the Coast and Neighbourhood. Edward Stanford, London (https://doi.org/10.1080/00222936008697333)
- ↑1 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 J. B. Delair. 1960. The Mesozoic reptiles of Dorset. Part two. Proceedings of the Dorset Natural History and Archaeological Society 80:52-90
- ↑1 2 3 4 5 6 A. S. Parkes. 1993. Dinosaur footprints in the Wealden at Fairlight, East Sussex. Proceedings of the Geologists' Association 104(1):15-21 (https://doi.org/10.1016/s0016-7878(08)80151-4)
- ↑1 2 3 4 W. A. S. Sarjeant. 1974. A history and bibliography of the study of fossil vertebrate footprints in the British Isles. Palaeogeography, Palaeoclimatology, Palaeoecology 16:265-378 (https://doi.org/10.1016/0031-0182(74)90024-8)
- ↑1 2 3 4 S. H. Beckles. 1854. On the Ornithoidichnites of the Wealden. Quarterly Journal of the Geological Society of London 10:456-464 (https://doi.org/10.1144/gsl.jgs.1854.010.01-02.52)
- ↑1 J. B. Delair. 1989. A history of dinosaur footprints discoveries in the British Wealden. Dinosaur Tracks and Traces
- ↑1 2 3 4 5 6 A. Taylor. 1862. On the footprint of an Iguanodon, lately found at Hastings. Quarterly Journal of the Geological Society of London 18:247-253 (https://doi.org/10.1144/gsl.jgs.1862.018.01-02.37)
- ↑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 J. B. Delair and W. A. S. Sarjeant. 2002. The earliest discoveries of dinosaurs: the records re-examined. Proceedings of the Geologists' Association 113:185-197 (https://doi.org/10.1016/s0016-7878(02)80022-0)
- ↑1 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 W. A. S. Sarjeant, J. B. Delair, and M. G. Lockley. 1998. The footprints of Iguanodon: a history and taxonomic study. Ichnos 6(3):183-202 (https://doi.org/10.1080/10420949809386448)
- ↑1 2 R. S. Herries. 1907. Excursion to Crowborough. Proceedings of the Geologists' Association 20(3):163-166 (https://doi.org/10.1016/s0016-7878(07)80067-8)
- ↑1 P. Austen, D. Brockhurst, and K. Honeysett. 2010. Vertebrate fauna from Ashdown Brickworks, Bexhill, East Sussex. Wealden News (8):13-23
- ↑1 2 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 J. C. Thompson. 1924. Local erosion of the coast. Hastings and East Sussex Naturalist 3(3):154-155
- ↑1 2 S. H. Beckles. 1851. On supposed casts of footprints in the Wealden. Quarterly Journal of the Geological Society of London 7:117 (https://doi.org/10.1144/gsl.jgs.1851.007.01-02.26)
- ↑1 2 P. M. Barrett and S. C. R. Maidment. 2011. Armoured dinosaurs. English Wealden Fossils. Palaeontological Association Field Guide to Fossils 14:391-406
- ↑1 2 3 4 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)
Galerie d'image
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