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The Vectis Formation is a geological formation on the Isle of Wight and Swanage, England whose strata were formed in the lowermost Aptian, approximately 125 million years ago.[1][2] The environment of deposition was that of a freshwater coastal lagoon with occasional marine influence after the early Aptian marine transgression, transitioning from the floodplain environment of the underlying Wessex Formation. The primary lithology is of laminated grey mudstones. The Vectis Formation is composed of three geological members: the Shepherds Chine member, the Barnes High Sandstone member, and the Cowleaze Chine member. It is overlain by the fully marine Atherfield Clay Formation, part of the Lower Greensand Group. Dinosaur remains are among the fossils that have been recovered from the formation.[3]

Vectis Formation
Stratigraphic range:
Lower Aptian ~125 Ma
TypeGeological formation
Unit ofWealden Group
Sub-units
  • Shepherds Chine Member
  • Barnes High Sandstone Member
  • Cowleaze Chine Member
UnderliesAtherfield Clay Formation
OverliesWessex Formation
ThicknessMaximum of 66 m
Lithology
PrimarySiltstone, Mudstone
OtherSandstone, Limestone, Ironstone
Location
RegionEngland
Country UK
ExtentDorset, Isle of Wight

DinosaursEdit

See alsoEdit

ReferencesEdit

  1. ^ "Magnetostratigraphy of the Lower Cretaceous Vectis Formation (Wealden Group) on the Isle of Wight, Southern England."
  2. ^ Batten, D. J. (ed.) 2011. English Wealden Fossils. The Palaeontological Association, London.
  3. ^ a b c d e f g h Weishampel, David B; et al. (2004). "Dinosaur distribution (Early Cretaceous, Europe)." In: Weishampel, David B.; Dodson, Peter; and Osmólska, Halszka (eds.): The Dinosauria, 2nd, Berkeley: University of California Press. Pp. 556-563. ISBN 0-520-24209-2.