Swithland Formation

  1. Home
  2. Wiki
Swithland Formation
Stratigraphic range: Cambrian 532–520 Ma[1]
Swithland Wood and The Brand, which gave the first half of its name to the formation, which itself can be found here.
TypeFormation
Unit ofBrand Group
Sub-unitsSouth Quarry Slump Breccia, Lubcloud Greywackes and Morley Lane Tuffs Members
OverliesBrand Hills Formation[2]
Thickness260 m (853 ft)[2]
Lithology
PrimaryPelite
OtherShale, Greywacke, Conglomerate
Location
RegionLeicestershire
Country United Kingdom
Type section
Named forSwithland Wood and The Brand

The Swithland Formation is a geologic formation in Leicestershire, and lies within the wider Swithland Wood and The Brand area. It preserves ichnotaxon dating back to the Cambrian period.

Paleobiota

[edit]

The Swithland Formation preserves alot of Cambrian ichnogenera, which are usually attributed to burrowing organisms like marine annelids. The most important one from this formation is Teichichnus, which was the first one found, and the one that proved this Brand Group was Cambrian in age, which also led to the discovery and research of a diorite unconformity between the Brand and Maplewell Groups.[1]

Color key
Taxon Reclassified taxon Taxon falsely reported as present Dubious taxon or junior synonym Ichnotaxon Ootaxon Morphotaxon
Notes
Uncertain or tentative taxa are in small text; crossed out taxa are discredited.

Ichnogenera

[edit]
Genus Species Notes Images
Palaeophycus[1]
  • Palaeophycus isp.
 Burrows.
Planolites[1]
  • Planolites isp.
 Burrows.
Skolithos[1]
  • Skolithos isp.
 Burrows.
Teichichnus[1]
  • T. rectus
 Burrows.

See also

[edit]

References

[edit]
  • Various Contributors to the Paleobiology Database. "Fossilworks: Gateway to the Paleobiology Database". Retrieved 17 December 2021.
  1. ^ a b c d e f McILROY, D.; Brasier, M. D.; Moseley, J. B. (March 1998). "The Proterozoic–Cambrian transition within the 'Charnian Supergroup' of central England and the antiquity of the Ediacara fauna". Journal of the Geological Society. 155 (2): 401–411. doi:10.1144/gsjgs.155.2.0401.
  2. ^ a b Moseley, John; Ford, Trevor. "The Sedimentology of the Charnian Supergroup" (PDF). Mercian Geologist.